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Revisiting the Patterns of Developmental Pathways Framework: The Enneagram Triadic Structure

Using the Enneagram Harmony Triads and the Enneagram’s Comprehensive System to Build a Developmental Pathways Framework–From 1 to 3 to 9 to 27 Patterns

Published: March 3, 2026 (Updated: August 30, 2026)

This article has three aims: (1) to acknowledge David Daniels’ contribution to the Enneagram Harmony triadic structure which forms a developmental pathway from the Three Centers of Intelligence to the nine Enneagram personality patterns and (2) to situate the Harmony Triads within a broader Comprehensive Enneagram System in which Centers, behavioral orientation, emotional regulation, energy regulation, and the instincts interact, and (3) to compare the triadic structure of the Harmony Triads with the PDP Attendency hypothesis, particularly in relation to Patterns 5 and 7. 

Since first studying the Enneagram in 1984, I have sought to understand how the 9 Enneagram personality patterns develop. This interest led to the formation of the PDP group in 2003, which explored how traditional Enneagram teachings and patterns might be interpreted in the language of contemporary child development, temperament and attachment research. In 2025, I revisited work my father, David Daniels, conducted between 2008 and 2012 on what he labelled the Enneagram Harmony Triads.

David Daniels’ contribution to the Enneagram Harmony Triads invites a closer examination of the Enneagram’s underlying triadic organization. The Enneagram Harmony Triads describe an adaptive behavior or “action” (Outward-Act For 8-2-5, Inward-Act On 1-4-7, and Dyadic-Act With 9-3-6) that brings both value to others and helps the child move towards wholeness, by narrowing the gap between internal states and what the environment offers or demands). When the environment consistently rewards these adaptive behaviors, they become increasingly reinforced over time.

The organization of personality reveals a recurring triadic structure as it extends beyond behavioral orientation to 3 additional domains of psychological functioning: (1) Center of Intelligence Triads (Body-Agency, Heart-Bonding, Head-Certainty), (2) Emotional Regulation Triads (Shift, Contain, Express), and (3) Energy Regulation Triads (Receptive–In and Down, Active–Up and Out, Balancing–Dyadic). Within each domain, every Enneagram pattern exhibits a predominant orientation that is directed outward to the external environment, inward to internal state, or organized around attempting to reconcile internal state with the external environment. Rather than representing independent traits, these dimensions unfold as different expressions of a common underlying 3-fold recurring pattern. This triadic pattern creates and operates in the whole Enneagram system in parallel and interactive pathways.

This triadic structure shows slightly different results when compared to the PDP or Patterns of Developmental Pathways (PDP) framework, particularly in the treatment of patterns 5 and 7.


Side Note

To date, this is the only article on the drdaviddaniels.com website written by his daughter. All other content has been written by David. For further information see:

Notes and Acknowledgments

Background to this Article


Introduction

Importance of Developmental Pathways

Understanding the pathways to development of our personality provides us with understanding of why we are who we are, and why others are the way they are. Understanding provides a non-judgemental acceptance of ourselves and others that can shift our lives in profound ways (Daniels and Dion, 2025).

By viewing personality as a developmental process of awareness rather than as a fixed identity, we have the opportunity to see in our pathway that our personality runs on auto-pilot and can prompt us to seek how we can develop beyond the limitations of personality (Ouspensky, 1950; Nicoll, 1952-56).

David Daniels’ Contribution to the Harmony Triads

David Daniels’ work on the Harmony Triads (see Daniels, 2012 Harmony Triads) provides an important key to understanding these developmental pathways. His work brings a small but significant contribution to knowledge dating back thousands of years (Gurdjieff, 1949, Ichazo, 1970). Drawing on over 40 years of clinical observation, experience, and teaching, Daniels recognized that each pattern had a head, heart, and body connection that the traditional hexad lines of the Enneagram do not provide – a heart-head between Pattern 2 and 5 as well as 7 and 4. He then effectively used the new connecting lines forming 3 equilateral triangles for greater psychological integration verifying its usefulness in helping and healing.   

The important and contemporary contribution of Daniels’ work is his distinction between descriptions of personality that emphasize conditioned, defensive, and contracted patterns and descriptions that emphasize healthier, undefended, and more integrated expressions of the same underlying orientation. This perspective shifts attention from personality as a description of outside characteristics and traits that run without our awareness to an inner dynamic developmental process toward higher states of consciousness: from passive “mechanical-attention” to active “drawn-attention” or mindfulness consciousness to eventually very active “controlled-attention” or sustained presence at all times, everywhere. 

Although David Daniels, M.D. (2012) made a contemporary contribution to linking all triads, the 3 Centers, and the healthy and less healthy labels of regulation in the microcosm of the Harmony Triads, the fundamental path that makes up the whole of the harmony has best been described by Oscar Ichazo, circa 1966 to1970 (Keen,1973; Lilly and Hart, 1975; Ichazo, 2024).

This article provides a recapitulation of David Daniels’ contribution to the Harmony Triads, which aligns with the scholarship of G.I. Gurdjieff and Oscar Ichazo who brought the Enneagram knowledge and mathematical patterns to the west in the 20th Century (for Gurdjieff scholarship, refer to P.D. Ouspensky’s three books, 1949, 1950, and 1971 and commentaries in five volumes by Dr. Maurice Nicoll, 1952-56; for Ichazo scholarship, see his 2024 publications).

Background to the 3-Fold Recurring Pattern of the Enneagram Harmony Triads

Over the past several decades, the Enneagram has attracted great interest among practitioners, educators, coaches and researchers seeking to understand personality and human development. Numerous empirical studies are currently taking place to assess the structure and efficacy of the Enneagram of Personality (Google Scholar indicates over 8,000 academic journal articles across all continents, August 2026).

This article examines developmental pathways in light of  the simple 3-fold pattern found in the Enneagram Harmony Triads. Beginning with the 3 Centers of Intelligence, the same outward, inward, and dyadic pattern recurs in the Harmony Triads, the Emotional Regulation Triads, the Energy Regulation Triads, and the organization of the 9 personality patterns (Stenstrom, 2010). The triadic recurring organization resembles what mathematicians view as analogous to recursive or self-similar structure, and is discussed in the conclusion to this article. although the present paper does not establish a mathematical fractal in the formal sense.

Developmental Pathways of the Enneagram System

Within the Enneagram tradition, brought forward by Gurdjieff and Ichazo, human development is often described as beginning (in utero) from an original experience of undifferentiated connection, followed (after birth) by an increasing awareness of self and other during infancy and early childhood. Contemporary developmental psychology likewise describes development as a gradual differentiation between internal experience and the external environment, with children developing increasingly sophisticated ways of regulating their emotions, energy, behavior, and relationships.   

In the eastern psychology of the Enneagram, the source of human suffering is the “gap” between our internal state and what the environment actually holds. A young child’s internal state desires love and acceptance, but may experience the environment as unloving and judgemental (Lilly and Hart, 1975; Ichazo 1982b). Our personality develops as the “coping mechanism” for this perceived separation when internal and external states do not align. 

The 3-fold recurring structure of each triad of functioning must be understood as an entire emergent system operating: (1) independently or interactively, (2) in a sequence or simultaneously (in parallel), and (3) contextually to the situation, thus making it challenging to map to a linear pathway of development. However, the 3-fold structure does expose a general pathway describing first: (1) experienced wholeness, 1 to 3 patterns,  (2) 3 to 9 patterns, and (3) 9 to 27 patterns of human personality.

Importance of Labels in the Enneagram

Because various schools of psychology have studied the Enneagram since Oscar Ichazo introduced it in 1970 to a group of psychiatrists, psychologists, and spiritual seekers from North America, various labels have been assigned to the triads which has caused a tremendous amount of confusion in understanding. Thus, for each of the four triads a detailed table is presented to show how various labels describe the same function.

In the following four sections, the triads are explained in this order, each with a table of labels:

  • The Center of Intelligence Triads
  • The Harmony Triads
  • The Emotional Regulation Triads
  • The Energy Regulation Triads
 

The Centers of Intelligence Triads: Evolution of the 3 Centers of Intelligence Optimizing 3 Survival Instincts

From Gurdjieff and Ichazo teachings we know that the Enneagram's 3 Centers of Intelligence can be understood as 3 broad functional systems that optimize 3 survival instincts (Ouspensky, 1950; Ichazo, 2024a, 2024b). Rather than representing separate parts of the mind, the Centers operate simultaneously as “mind” viewed as complementary modes of processing information and regulating behavior. The soma senses, emotions react, and cognition assess. 

In addition to Gurdjieff and Ichazo, psychiatrist Claudio Naranjo described these 3 broad survival instincts with slightly different terminology (Naranjo, 1990) as shown in Table 1a.

Table 1a: Comparative Labels for the 3 Survival Instincts

The evolutionary capacities of the 3 Centers of Intelligence suggests that each Center organizes characteristic patterns of functions, including, but not limited to motivation, attention, information filtering, memory storage, emotional regulation, energy regulation, and behavior in three specific recurring orientations (Table 1b).

Table 1b : Triadic Patterns of the Centers for Some Key Functions

Some Key Functions of the Enneagram's 3 Centers of Intelligence

Body (Instinctual-Moving) Center –  Evolved to Optimize the Self-Preservation Instinct or Survival of the Soma

The Body Center is associated primarily with physical preservation and effective engagement with the environment. Its adaptive drive is toward harmony of self with the environment–maintaining an optimal relationship between the organism and its surroundings through effective movement to environments with optimized resources and minimized threat.

With its primary emphasis on bodily self-preservation, the Body Center’s key function is receiving the external environment through the senses and movement. The Body Center is characterized by: 

  • Evolving to “serve” the self-preservation instinct, or survival of the soma
  • A drive for harmony with the environment through optimized resources and minimized threat
  • A motivational emphasis on agency, empowerment, and effective action
  • A propensity toward aversive emotions of anger and resentment, and the positive emotion of play in boundary-testing
  • Attention primarily directed outward to the environment, building confidence to act by understanding the environment
  • Emotional regulation that pauses action, turning outward to assess or reframe the environment, then inward to shifting emotional state for positive action serving self and others
  • Energy regulation that protects self –  energy flows from outward to inward, receiving the environment through the senses and movement, and directing energy in and down to protect self

Heart (Emotional-Relational) Center – Evolved to Optimize the One-On-One Relational Instinct

The Heart Center is associated primarily with mating, pair-bonding, and attachment. Its adaptive drive is toward doing the connecting–actively asserting self in response to internal feeling states. Both positive and aversive emotions prompt rapid action.

With its primary emphasis on connecting with one’s species, the Heart Center’s key function is to assert self through emotions critical in competition for mating and to establish relationships that support individual development and continuation of the species. The Heart Center is characterized by: 

  • Evolving to “serve” the one-on-one relational instinct, primarily pair bonding
  • A drive for doing the connection in one-on-one relationships is dominant
  • A motivational emphasis on bonding and connection, and relational attunement 
  • A propensity toward aversive emotions associated with separation-distress, sadness, and grief, and the positive emotion of care-taking in relationships
  • Attention primarily directed inward to internal emotional experience, building confidence by relying on inner confidence to know what to do
  • Emotional regulation through inward containing in a “wait” with attention focused on inner rationale and logic before outward asserting of solutions that work for self and others
  • Energy regulation that protects self – energy flows from inward to outward, being “first” to assert a position, active asserting of self through inner emotional state, energy flowing up and out toward result to protect self

Head (Cognitive - Intellectual) Center – Evolved to Optimize the Adaptation-Social Instinct

The Head Center is associated primarily with adaptation within larger social and ecological systems. Its adaptive drive is toward knowing–developing understanding that reconciles internal and external experiences focused on gathering knowledge to determine cause and effect. Discerning root-cause gives rise to a predominantly dyadic orientation of attention, continually relating internal experience to external events in order to increase certainty, predictability, and master the environment through building solutions and tools to make the environment more amenable.

With its primary function to “serve” the instinct to adapt to and “master” the environment, its primary function is to reconcile internal state with the environment or a more sophisticated cause-effect discernment. The Head Center is characterized by:

  • Evolving to “serve” the social instinct, emphasizing adaptation within larger social and ecological systems
  • A drive for knowing through understanding patterns of cause and effect, increasing alignment between internal experience and external reality
  • A motivational emphasis on certainty and safety
  • A propensity toward aversive emotions of fear and anxiety, and the positive emotion of seeking new information and knowledge about self and the environment
  • Attention organized dyadically, continually relating internal experience to environmental events, building confidence through knowledge and understanding 
  • Emotional regulation through expressing and evaluating both emotional information and outer environment as a dyadic discernment of whether the root cause is internal/self or external/other intending to serve self and other
  • Energy regulation that dyadically attempts to balance self with others and the environment, the tension of energy in balancing results in protection of self  through complying or compromising with others

Triadic Structure of the Centers of Intelligence Triads

Because the 3 Centers of Intelligence are associated with evolutionary functions (Ouspensky, 1949; Smith, 1993) tied to each of the 3 instincts, the Body Center recurring pattern places confidence in the outer environment, the Heart Center places it in the internal feeling state, and the Head Center attempts to reconcile outer and inner. Figure 1 shows the placement of the 3 Centers in the Enneagram diagram.

Figure 1. The Centers of Intelligence Triads

  • Body – Outward biased attention to Harmony of Environment
  • Heart – Inward biased attention to Internal Feeling State 
  • Head – Dyadic biased attention to Attempt to Reconcile Environment and Internal State
 
Enneagram Harmony Triads 3 Centers of Intelligence
Enneagram Triadic Structure of the 3 Centers of Intelligence Attention Biased Outward, Inward, and Dyadic

Early Naranjo teachings placed all 3 instincts in the Body Center. However, Gurdjieff and Ichazo scholarship place all 3 instincts in all Centers (Ouspensky, 1949; Ichazo, 2023b), but self-preservation dominates in the Body Center, one-on-one dominates in the Heart Center, and social dominates in the Head Center. At puberty all 3 instincts are impacted, particularly the one-on-one instinct, often called the sexual instinct.

Labels Describing the Centers of Intelligence Triads

Gurdjieff, Ichazo, and Naranjo each used slightly different labels for the 3 Centers of Intelligence as summarized in Table 2a.

Table 2a: Center of Intelligence Labels

The Enneagram Harmony Triads: Act For, Act On, Act With

The Role of the Harmony Triads – Provides Reciprocal Value to Self and Others

Within each Center of Intelligence, adaptive behavior differentiates further into reciprocal value for self and others, described by Daniels as:

Outward Act For (8-2-5):  David Daniels described this triad as the Relationists, emphasizing the value each type contributes through outward engagement with the world. 

Inward Act On (1-4-7):  David Daniels described this triad as the Idealists, emphasizing their tendency to transform existing reality in accordance with internal standards and ideals.

Dyadic Act With (9-3-6):  David Daniels described this triad as the Pragmatists, emphasizing their continual balancing of what do others need with what can I bring them through reciprocal engagement. 

These outward, inward, and dyadic directions represent 3 distinct ways of organizing behavior that benefit the child’s attempts for restored wholeness, while also bringing value to others and the environment a child is raised in (Ichazo 2024a, 2024b, Wheeler, 2026). Together, they form the Harmony Triads and provide the developmental bridge from the 3 Centers of Intelligence to the 9 Enneagram personality patterns. See Table 2b.

Table 2b:  Bridging the 3 Centers of Intelligence to the 9 Patterns Using the Harmony Triads

he 3 Centers of Intelligence Divide into 3 Actions of Value to Self and Others Act For Others, Act On Others, Act With Others

The Harmony Triads serve as a form of Behavioral Regulation: Is my behavior working for others? Is it working for self? Does it help close the gap between self and environment as I attempt to experience wholeness and assuage aversive emotions?

In the BODY CENTER

  • We can ACT FOR the world — Protect others from harm and injustices while shielding self from vulnerability (Pattern 8)
  • We can ACT ON the world — Make self the one with idealized harmony and share this perfection with others simultaneously achieving internal goodness for self (Pattern 1)
  • We can ACT WITH the world — Minimize self and blend with others to prevent conflict and preserve a peaceful environment and harmony for self (Pattern 9)

In the HEART CENTER

  • We can ACT FOR the world — Meet needs or make connections for others while also gaining approval for self by helping others (Pattern 2)
  • We can ACT ON the world — Make self the one who connects our shared existential concerns and share them with others simultaneously gaining a deep sense of connection for self (Pattern 4)
  • We can ACT WITH the world — Identify with doing and the internal value I bring and stay connected to make sure others approve of self by what I do (Pattern 3)

In the HEAD CENTER

  • We can ACT FOR the world — Help others to solve their problems while creating models of understanding the world for my own self knowledge (Pattern 5)
  • We can ACT ON the world — Make self the one with a future ideal of wisdom and share it with others while simultaneously providing self with positive options for the future (Pattern 7)
  • We can ACT WITH the world — Question the nature of reality for self and others while reducing doubt and building predictability for self (Pattern 6)

Triadic Structure of the Harmony Triads

The three behavioral orientations of the Harmony Triads continue the pattern of outward, inwardly referenced, and dyadic modes of regulating and organizing behavior based on the proper evolutionary function of the Centers (see Figure 2 and 3).

Starting with Figure 2 each point within the triangles of each Center represents one of the 9 Enneagram personality patterns expressing the motivational drive (harmony, doing the connecting, knowledge) in a distinct way.  Each Center has a pattern that will Act For, On, and With.

Figure 2:  The 3 Centers Divide Into Act For, Act On, and Act With

  • Act For – Outward Organization of Behavior
  • Act On  – Inward Organization of Behavior
  • Act With – Dyadic Organization of Behavior

The Enneagram 3 Centers of Intelligence Divide Into Act For the World, Act On the World, Act With the World

Next is Figure 3, Daniels' basic Harmony Triads diagram in which the structure conveys two related ideas.

Figure 3: The Harmony Triads, David Daniels, M.D.

  • Center Triads: Body, Heart, Head
  • Emotional Regulation Triads: Shift, Contain, Express (also called Positive Outlook, Competency, and Reactive)
  • Energy Regulation Triads: Receptive (in and down), Active (up and out), Balancing (tension between) (also called Withdrawing, Asserting, Complying)

First, the 3 equilateral triangles represent the 3 basic actions of reciprocal value: Outward-Act For (RED triangle), Inward-Act On (BLUE triangle), and Dyadic Attempt to Balance Inward and Outward Act With (GREEN triangle) in which each triangle contains a Body, Heart, and Head Center.

Second, it can be seen reading the words of the triads for each point that the core points of 9, 3, 6 representing the 3 Centers have a steady use of their Center of Intelligence. However, it may look like their Center is underused because the Act With behavior blends, defers, and compromises. On the other hand, the wing points (1, 2, 4, 5, 7, 8) use regulation modes of varying centers (Daniels, 2012; Riso & Hudson, 2000).

Consistent with the recurring triadic structure, the outward, inwardly referenced, and dyadic orientations are also expressed in the Emotional Regulation Triads (Outward-Shift, Inward-Contain, and Dyadic-Express), and the Energy Regulation Triads (Outward-Receptive flows to In and Down, Inward-Active flows to Up and Out, and Dyadic-Balancing) which will be described in upcoming sections of this article.

Many Labels Describing the Harmony Triads

In 1970, Ichazo communicated that there is an inward or internalized version and an outward or externalized version of core balancing points 9 (body), 3 (heart), and 6 (head). Ichazo’s 2024 publications present labels of Action (8, 2, 5), Reaction (1, 4, 7), and Result (9, 3, 6).

Ichazo’s work indicates that we behave based on where we find “confidence to act” – confidence based on what the environment informs, confidence in our inner abilities to know what to do, or in a result that brings both together.

  • Confidence to Act:  From Environment  |  From Self  |  From Both
  • Orientation: Outward  |  Inward  |  Dyadic   
  • Ichazo (2024a):  Action  |  Reaction  |  Result
  • Daniels (2012):   Relationists  | Idealists  |  Pragmatists
  • Wheeler (2026)/This article:  Act For  |  Act On  |  Act With

Over the almost 60 years since Oscar Ichazo introduced the Enneagram to the “West,” numerous labels and descriptions have defined the core action or behavior that creates a pathway from relying on one of 3 Centers of Intelligence to 9 personality types or patterns (see Table 3).

Table 3: Various Labels for the 3 Harmony Triads Basic Relationship to the World (also called Object-Relations Triads)

Contributors to the Harmony Triads Beginning with Ichazo, including Daniels, and most recently Wheeler

A central contribution of David Daniels' Harmony Triads’ work is his distinction between healthier and more contracted or unhealthy expressions of the same adaptive orientation. An adaptive behavior may initially serve development effectively by bringing value to the child, others, or the surrounding environment. When that behavior becomes the habitual strategy through which the individual seeks acceptance, connection, or security it can become increasingly automatic, rigid, or overused. The next two sections further summarize this distinction.

The Emotional Regulation Triads – Shift, Contain, Express

The Role of the Emotional Regulation Triads – Provides Capacity for Resolution

Next are the 3 emotional regulation triads (Figure 4). The capacity of mind to regulate emotions and modify them is key in resolving our experiences of rupture in relationships, larger conflicts, and other gaps of separation between what the self desires and what the environment presents (Daniels, 2012).

  • Shift (Outward to Environmental Harmony): 3 patterns have a bias in the Body Center to restore harmony of the environment
    • Patterns 9, 2, and 7 reframe the environment as positive and harmonious, and shift-regulate their emotional state to resolve or reconcile problems, but can completely repress emotions in stress and reactivity.
    • Healthy Regulation: Shift-regulating emotions without completely repressing them
  • Contain (Inward to Internal Rationale): 3 patterns have a bias in the Heart Center to assert a rationale solution from self, to do, and to accomplish
    • Patterns 3, 1, and 5 contain-regulate providing time to internally analyze, build rationale, and logic to resolve or reconcile problems, but can suppress emotions in stress and reactivity.
    • Healthy Regulation: Down-regulating emotions so they are contained and present rather than suppressed
  • Express (Dyadic to Cause and Effect): 3 patterns have a bias in the Head Center to reconcile cause and effect with knowledge.
    • Patterns 6, 4, and 8 express-regulate voicing concerns and causes to uncover “data” and knowledge about the root cause of problems to resolve or reconcile problems, but can amplify and project emotions in stress and reactivity.
    • Healthy Regulation: Up-regulating emotions enough for constructive expression and verbalization to uncover "what's really going on" and increase cause-effect knowledge rather than "amplified-potentially-destructive" emotions

Triadic Structure of Emotional Regulation

As seen in Figure 4, the 3-fold pattern continues from the Center’s dominant bias of an outward, inward, or dyadic orientation based on its evolutionary purpose. The diagram connects core points 9, 3, and 6 to the wing points that use the Emotional Regulation modes of the Body, Heart, and Head Centers, respectively.

Figure 4. Emotional Regulation Triads (also referred to as the Conflict Resolution Triads)

  • Body – Outward Shifting (Positive Outlook) – 9 body triangle lines to 2 and 7
  • Heart  – Inward Containing (Competency) – 3 heart triangle lines to 1 and 5
  • Head – Dyadic Expressing (Reactive) – 6 head triangle lines to 4 and 8
Enneagram Harmony Triads Emotional Regulation
The Enneagram Harmony Triads Emotional Regulation Triadic Pattern Outward Inward Dyadic

Many Labels Describing the Emotional Regulation Triads (or Harmonic Triads)

Table 4 outlines the various labels that have been used to understand the emotional regulation triads, including healthier and less healthy labels. Emotional regulation also can impact the core behavior to act for, on or with others.

Table 4: Emotional Regulation Labels (or Harmonic Triads)

Various Labels for the Enneagram Emotional Regulation and Conflict Resolution Triads

The Energy Regulation Triads – Receptive In and Down, Active Up and Out, Balancing

The Role of the Energy Regulation Triads – Provides Self-Protection

The Energy Regulation Triads (Figure 5) protect self and the flow of energy. However, in a reactive and stressed context regulation can become constricted, possibly decreasing the amount of free-flowing energy. 

  • Receptive (Outward to Inward Flow): 3 patterns have bias in the Body Center’s receptive energy which flows outward to in and down
    • Patterns 9, 4, and 5 receive the needs of the environment and others, but this receiving energy can also contract to withdrawing behavior.
    • Healthy Regulation: receptive and present energy without withdrawing, considers self and other
  • Active (Inward to Outward Flow): 3 patterns have bias in the Heart Center’s active energy which flows inward to up and out
    • Patterns 3, 7, and 8 lean into inner abilities to know what to do, but this decisive active energy can also contract to aggressive behavior.
    • Healthy Regulation: active and grounded energy without aggressive asserting from self, considers self and other
  • Balancing (Dyadic Flow): 3 patterns have bias in the Head Center’s balancing energy which toggles between self and other
    • Patterns 6, 1, and 2 look to balance and compromise, but this balancing energy can also contract to complying behavior to protect self (6 is dutiful for safety, 1 defers to societal super-ego, 2 is compliant to important others).
    • Healthy Regulation: balanced energy which takes in both self and other sans compromise or co-dependency.

Triadic Structure of Energy Regulation

As seen in Figure 5, the 3-fold pattern continues from the Center’s dominant bias of an outward, inward, or dyadic orientation. The diagram connects core points 9, 3, and 6 to the wing points that use the Energy Regulation modes of the Body, Heart, and Head Centers, respectively.

Figure 5. Energy Flow Regulation Triads (also called the Hornevian Triads, see Table 5)

  • Body – In and Down (or Withdrawing) – Outward to inward energy flow – 9 body triangle lines to 4 and 5
  • Heart – Up and Out  (or Asserting) – Inward to outward energy flow – 3 heart triangle lines to 7 and 8
  • Head – Between (or Complying) – Dyadic attempt to balance energy tension – 6  head triangle lines to 1 and 2
Enneagram Harmony Triads Emotional Regulation
Enneagram Harmony Triads Energy Flow Triadic Pattern Outward Inward Dyadic

Many Labels Describing the Energy Regulation (or Hornevian Triads)

Table 5 outlines the various labels that have been used to understand the energy regulation triads, including more and less healthy (Daniels, 2012). In addition, the labels of “against,” “away,” “toward,” and “with” have been used in different contexts, also causing confusion particularly when used to describe behavior (see the last row of Table 5).

Finally, Energy Regulation modes influence observable behavior. For example, Patterns 2, 5, and 8 “Act For” others, behaving to provide protection, meet needs, and provide knowledge for others. However, Pattern 8 energy is up and out, Pattern 5 is down and in, and Pattern 2 toggles between balancing needs of important others and of self.

Table 5: Energy Flow Regulation Labels (or Hornevian Triads)

Various Labels for the Enneagram Energy Flow and Hornevian Triads

Developmental Pathways Based on the Enneagram as a Comprehensive System: 1 to 3 to 9 to 27

With both the survival instincts and four triads described, this section builds a framework of developmental pathways (Figure 6) which includes all elements of the Enneagram Personality System. The descriptions of development are based on the Enneagram tradition.

The framework starts with the operation of the natural instincts or the operation of the 3 instincts before learned experience is stored in memory. As the structure of 9 personality patterns are formed by growing experience, coping mechanisms of personality distort the natural instincts into what Ichazo labelled as distorted or conditioned instincts, resulting in 27 patterns.

  • The 3 natural instincts of survival – instincts operating before learning/conditioning
  • The 3 Centers of Intelligence Triads
  • The Harmony Triads – Behavioral Regulation Triads
  • The Emotional Regulation Triads
  • The Energy Flow Regulation Triads
  • The 3 “distorted” instincts of survival – instincts operating after learning/conditioning

The four triads are not four successive developmental stages, but rather an emergent system in which all the “separate” functions and orientations operate interactively, simultaneously, sequentially, and contextually. 

The 1 to 3 to 9 to 27 sequence describes a proposed developmental differentiation of the Enneagram, whereas the comprehensive system describes the interacting functional domains through which those patterns are expressed and regulated.

Figure 6: An Enneagram System Comprehensive Patterns of Developmental Pathways Framework

Patterns of Developmental Pathways Based on the Enneagram Harmony Triads and the Enneagram as a Comprehensive SystemFrom 1 to 3 Patterns:  Undifferentiated Beginning to 3 Centers of Adaptive Functions → 3 Patterns

  • We begin in the womb with an experience of unity.
  • Following birth, the sensate experience of separation leads to our attempts to restore wholeness. One of our primary Centers of Intelligence is relied upon in attempting to close the gap between "self” and "environment” based on our natural instincts embedded in temperament.
  • Each of the Centers of Intelligence has physical, emotional, and mental habits, but some come to be relied on more than others.

Although all 3 Centers of Intelligence operate simultaneously and remain available throughout life, the framework indicates that children may develop a preference for relying on one Center more than the others (Gurdjieff 1950; Ichazo, 1982a). Which Center becomes predominant is understood to reflect primarily inborn temperament but can also be influenced by early trauma (Ichazo, 2023). As the adaptive strategies associated with that Center repeatedly succeed in meeting developmental needs and are reinforced by the child's environment, they become increasingly stable and characteristic over time.

From 3 to 9 Patterns:  3 Centers x 3 Behavioral Orientations → 9 Patterns

  • In perceived separation from the world, there are only 3 ways to build confidence to act and each Center divides into:
    • ACT FOR the world
    • ACT ON (Improve On) the World
    • ACT WITH the World

Embedded in the Harmony Triads we see our strengths and inherent value we bring to others and the world. However, this habit of action when compensated as our strategy to receive love can become contracted, fixated, over-compensated, and thus also become our weakness causing hurt and harm to both self and others, predicted by the level of secure attachment.

  • From here there are fundamental modes for regulating emotions and energy. If our Initiating Center of Intelligence fails to close gaps between internal state and the environment, Emotional Regulation most often follows attempting to Reconcile, followed or in parallel with a Denying of Others and the Environment which serves to protect us and our energy expenditure. Energy Regulation in a flow from outward to inward or inward to outward, or balancing appears as Introversion, Extraversion, or Ambiversion, impacting how the behaviors of Act For, Act On, and Act With are visibly observed. 

The Enneagram also identifies 9 defense mechanisms that “glue” the personality structure together as part of the Reconciling impulse. The 9 defense mechanisms also follow the 3-fold recurring pattern of the Emotional Regulation Triads:

  • 1-3-5, suppressing – retreating from conflict (inward)
    • Pattern 1 – Reaction Formation - hides the inner state and replaces it with calm.
    • Pattern 3 – Identification - hides the inner state and replaces it with external worthiness.
    • Pattern 5 – Isolation - hides the inner state by retreating into logic.
  • 4-6-8 expressing –- moving in on conflict to understand the cause (dyadic)
    • Pattern 4 – Introjection - projects contrition (My fault).
    • Pattern 6 – Projection - attributes own failings to others (Your fault).
    • Pattern 8 – Denial - projects righteous strength, regardless (No fault).
  • 2-7-9 repressing – avoiding conflict but at the same time producing it through omission (outward)
    • Pattern 2 – Repression - avoids hurtful conflict.
    • Pattern 7 – Rationalization - avoids hurtful blame.
    • Pattern 9 – Narcotization - avoids hurt, period.

From 9 to 27 Patterns:  9 Regulated Behavioral Patterns x 3 Conditioned Instincts → 27 Patterns 

  • As a conditioned personality develops, Ichazo describes how the natural instincts become distorted (serving self, rather than the species) and are labelled as Self-Preservation (me over other members of my species), 1:1 (exclusive connection, care, and focus on only some members of my species), and Social (a cover up for not contributing to the group’s effort to adapt to and master the environment) (Lilly and Hart, 1975; Ichazo, 1982a, 1982b). This is a further interaction and differentiation of each pattern according to the instinctual domain that becomes most relied upon based on experience and learning to close the gap of separation.

In Summary

Innate temperament and environmental experience, on aggregate, contribute to our personality. However, when looking at individuals, their particular genetics, specific traumas, and unique challenges, the balance of inborn temperament and environment could be weighted differently. Experiencing secure attachment is associated with a “softer” habitual personality pattern and insecure attachment a more “fixated” habitual personality pattern. In both healthy and less healthy personality the habit remains on auto-pilot until controlled attention enables a sustaining witnessing of our machine-like pattern.

Comparing Patterns of Developmental Pathways: The Enneagram Harmony Triads and the Attendency Triads

In the book Personality and Wholeness, the PDP Group formed a working hypothesis on a developmental pathway from 3 motivational Vectors to 9 personality patterns. The PDP hypothesis used data from the Centers Triads and the Emotional Regulation Triads. From here our Attendency hypothesis–attention, energy, and behavior channel in the same direction provided the path bringing us from the 3 motivations of agency, bonding, and certainty to 9 personality patterns. However, the broader system suggests that mind also has the capacity to monitor, modify, and modulate behavior, which can be seen when all four triads are included.

Energy Follows Attention, Regulation May Change It

Energy does follow attention, until regulatory capacities of the mind change the direction. Thus, inward, outward, and dyadic can change with behavior regulation of the Harmony Triad, Emotional Regulation and Energy Regulation.

As mentioned above, the PDP Group working hypothesis came from the use of two Enneagram triads. There are slight differences in predictions of behavior when we use all four sets of triads: 

  • The Centers Triads (or Vector triads),
  • The Action or Behavior Regulation Triads (a “contemporary” label for the Harmony triads),
  • The Emotional Regulation Triads, and
  • The Energy Flow Triads.

Table 7 shows the predictions of the Enneagram’s 3-fold recurring patterns with four triads (Centers/Vectors, plus 3 more triads) and the Attendency hypothesis with two triads, (Centers/Vectors, plus 1 triad for Emotional Regulation). 

Yellow highlights show slight differences in the resulting pathways from the 3 Centers/Vectors to the 9 patterns of personality when four versus two triads are included.

Table 7: Predictions Based on the Enneagram’s Triadic Recurring Pattern vs. Predictions Based on the PDP’s Attendency Hypothesis

Comparing the Enneagram Harmony Triads Using all 4 Triads to the PDP which used 2 Triads

Patterns 5 and 7: Taking Another Look

And, now back to the question that prompted this article:  Why did the PDP Group place Pattern 5 with inward and Pattern 7 with outward? Pattern 5, The Observer, has a bias in outward attention to observing, watching, and investigating, initially behaving to gather knowledge and understand the world as it is. On the other hand, Pattern 7, The Epicure, has a bias in inward attention to imagination and envisioning a “pain-free” world, initially behaving by turning inward creating a new vision for the future.

Table 8 highlights the impact of both energy and emotional regulation on behavior. The behavior orientation for Pattern 5 is outward in the form of understanding the world for others, but both energy and emotional regulation impact how that behavior manifests in an inward and quiet manner. Likewise Pattern 7 organizes their behavior around internal needs but both energy and emotional regulation create an assertive, up and out looking behavior.

Table 8: Looking at Pattern 5 and 7 Behavior, Attention, Energy Regulation, Emotional Regulation

Patterns 5 and 7 Show Differences Between The Enneagram Harmony Triads and the PDP Group's Attendancy Hypothesis

Matrix of the Four Triads

As seen in Table 9, labels used to describe healthy and less healthy forms of regulation are vital in clinical work and measurement.

Table 9: A Matrix of All 4 Enneagram Harmony Triads: Discerning Healthy versus Contracted and/or Reactive Regulation

Matrix of PDP with All 4 Triads: Center of Intelligence, Harmony Triads, Emotional Regulation Triads, and Energy Regulation Triads

Conclusions

This article set out to (1) describe the triadic, recurring structure of the Enneagram of Personality based on David Daniels’ contribution to understanding (and naming) the Harmony Triads, (2) build a developmental systems framework of interacting pathways based on the Enneagram as a comprehensive system, and (3) compare the Enneagram’s triadic structure to the PDP Group’s Attendency hypothesis.

Through this process, significant topics have surfaced, including: (1) the consideration of the Enneagram of Personality as a system containing pathways and interacting functions, (2) the triadic, recurring structure that cuts across all functions and levels of the system, (3) the heightened awareness of the variety of labels describing similar functions, (4) the courageous dialog created between the PDP and the ancient contemplative Enneagram tradition, and (5) the development of a bridge between Eastern and Western psychology.

Developmental Pathways and Interactive Functions Within a System

The study of the Harmony Triads presents a system of developmental pathways and interactive functions in which three Centers of Intelligence, optimizing three survival instincts, differentiate into nine personality patterns based on behavioral orientation and regulation. Each personality structure organizes and regulates around a core motivational behavior (ACT FOR, ACT ON, ACT WITH) that works to secure love, approval, and safety from our environment while attempting to solve a developmental problem: the human experience of “suffering” when our internal needs and what the environment delivers and demands are not experienced as congruent and whole. From a systems perspective, the nine patterns have both reliable pathways in which attention, energy, and behavior flow in the same direction as well as specific functions such as attention, drive, motivation, perception, and regulation that also interact across Centers of Intelligence and change the direction of attention and energy particularly when regulatory functions step in.

Triadic Structure: A Science of Patterns

The recurring, triadic structure of the Enneagram is consistent with a much older contemplative recognition that human experience and human consciousness organize themselves through recurring patterns rooted in whole systems dividing into three. And for the development of personality in three natural species survival instincts–Conservation, Relation, and Adaptation–using Ichazo’s labels. What is especially interesting to me is how the Enneagram triads may therefore offer a bridge between the contemplative traditions' science of patterns and the empirical sciences' study of complex biological and relational systems. When the triadic structure within the comprehensive system of the Enneagram of Personality is considered, it suggests future study of the Enneagram may benefit from an approach using system science as well as systems theory approaches capable of examining interacting and nonlinear processes.  

The Importance of Labels and Language

The labels we use can obscure as well as clarify. We may be talking about the same function while using different terminology from diverse fields of psychology, different lines of scientific research, as well as diverse labels in the contemplative traditions. Karen Horney's triads of coping mechanisms energetically express how we cope and attempt to get our needs met: withdrawing, asserting, and complying, for example, which initially look quite different from the triad of the basic life flow of energy: receptive–in and down, active–up and out, attempting to balance. Or in stress-survival mode in which energy regulation that serves to protect us takes the survival reflexes form: flight/withdraw, fight/assert, freeze/feint/attempt to balance. This is indeed a key contribution in Daniels’ Harmony Triads work. Similarly, animals regulate emotion through processes that might be described as containing-concealing, shifting-replacing, and sustaining-expressing. In the fixated or contracted, however, these same regulatory functions can distort from what is natural into suppressing, repressing, or amplifying emotions, particularly in stress and reactivity.

The PDP Brings a New Dialogue

The Patterns of Developmental Pathways (PDP) brought forward a courageous effort to bridge the ancient contemplative tradition of the Enneagram with contemporary affective neuroscience and developmental psychology. By translating Enneagram nomenclature into the language of contemporary science, the PDP framework generated valuable insight into motivational systems. At the same time, the PDP Group was necessarily selective. We focused on those aspects of the Enneagram that could most readily be brought into dialogue with affective neuroscience and contemporary developmental psychology. Revisiting Daniels’ work on the Enneagram Harmony Triads has revealed additional dimensions of the Enneagram system that were not incorporated into the PDP framework and has led me to reconsider some of the developmental pathways the PDP Group proposed. In this regard, David Daniels' contributions deserve acknowledgement. His work to bridge the Enneagram and science, his recognition of the triadic patterns of the Enneagram system, and his deep interest in interpersonal neurobiology provided an important foundation for this dialogue. 

Bridging Eastern and Western Psychology

A broader view suggests an important opportunity for psychological science and practice. The science of patterns represented by the Enneagram system has the potential to inform the empirical sciences, while empirical science can provide understanding for how these patterns become embodied, developmental, and relational in human biology and neurobiology. Turning to clinical practice, Western psychology, similar to Western medicine, has primarily focused on symptoms and coping mechanisms. The contemplative traditions are grounded from a different place, not only descriptive of how we cope—which is incredibly useful, but how we become free from the patterns through which we have adapted and learned to cope. Bringing these perspectives together allows us to hold these two views: our patterns are self-organizing adaptations, and they can also become limiting when they operate outside our awareness. The Eastern psychology of the Enneagram system does focus on how we can become a more self-aware, and hence, ‘balanced’ human being, it also focuses on the curative potential of consciousness—how sustaining our awareness can lead to a freer and less defended state, a capacity to receive the world as it is, and a sustained state of wholeness where we can move past functioning for the “I” of personality, and are now functioning for “We” of our whole species and all of life.

Side Notes

Notes and Acknowledgements

This article was written by Denise Daniels, Ph.D. and in alignment with the contribution to the Enneagram Harmony Triads by David Daniels, M.D. The views and opinions expressed in this article do not necessarily reflect the views or positions of other members of the PDP Group.

Reviewers and Contributors: Laura Baker, Suzanne Dion, Steven Wheeler

This article objectively describes the 3-fold recurring pattern found in the Enneagram. 

Please write to Denise Daniels about any questions or to set up a discussion: denise@drdaviddaniels.com 

Background to this Article

After the book, Personality and Wholeness, by Daniel Siegel and the PDP Group was released at the end of 2024, I was contacted by Enneagram scholars, clinicians, and teachers, certified in the Enneagram Institute and the Narrative Enneagram, with an interesting issue. Why did the PDP Group place Pattern 5 with a bias in inward attention and Pattern 7 with a bias in outward attention?

In addition, I was asked to explore the asymmetrical Attendency triads of 1-4-5 (inward) and 8-2-7 (outward) compared to the symmetrical Harmony Triads 1-4-7 (inward) and 8-2-5 (outward) (Figure 7).

Figure 7: Attendency Hypothesis and Enneagram 3-Fold Recurring Pattern

PDP Hypothesis Asymmetry Conflates Energy Flow and Emotional Regulation
Attendency Hypothesis: From 3 Vectors of 9-3-6 to 9 Patterns of Inward (1-4-5) and Outward (8-2-7)
The Enneagram Harmony Triads Body Center Heart Center Head Center
Enneagram 3-Fold Recurring Pattern: From 3 Centers of 9-3-6 to 9 Types of Inward (1-4-7) and Outward (8-2-5)

So….. why this article?

Honoring Dr. David Daniels. First and foremost, is a sense of responsibility to my father who recognized the pathway to 9 patterns formed by the 3 Harmony Triads, which he had not communicated to the PDP Group before his passing.

Verification Outside the Academic Academy. Second, is an acknowledgement to the contemporary Enneagram community of scholars and clinicians who have verified these patterns over a 60 year period, albeit outside of the academic academy.  

Science and Datasets. Third, is my responsibility as a scientist to communicate the PDP Group’s limited data set. Each of the four sets of triads – the Centers, the Harmony Triads, the Emotional Regulation Triads, and the Energy Regulation Triads have an outward, an inward, and a dyadic version. The PDP Group included two of the four triads in our work. This is a factor I did not fully understand until after the book was published and feel a responsibility to share this new knowledge and data with the PDP Group, clinicians, teachers, and researchers around the world.

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