Extraordinary Meridians — Part 1: From Classical Theory to a Conceptual Clinical Model for Shiatsu

Introduction

When I began my Shiatsu training, the perception of “energy” often felt difficult to define. How do we experience something that is neither visible nor physically tangible?

A quote by Gabrielle Roth, founder of the 5Rhythms movement, became an important source of inspiration for me:

“Energy moves in waves. Waves move in patterns. Patterns move in rhythms. A human being is just that: energy, waves, patterns, rhythms. Nothing more. Nothing less… A dance.”
(1989)

How does energy flow through the body? Which subtle, hidden pathways connect body and mind?

This first part invites the reader on a journey of exploration through the Eight Extraordinary Meridians (Qi Jing Ba Mai, 奇經八脈) — also known as the “Extraordinary Vessels”. We trace their historical origins and theoretical foundations, from the earliest classical texts to the rich traditions of Daoist alchemical thought.

Building on this foundation, I introduce a conceptual clinical model: a heuristic three-phase framework designed to support reflection and clinical practice for the modern Shiatsu practitioner. Although still exploratory in nature, this model offers a structured way of translating the subtle and often abstract dynamics of these meridians into the practical reality of Shiatsu treatment.

Yet this is only the beginning. In the second part of this article, these theoretical foundations are brought to life through an evocative “Dance of Qi,” in which the Extraordinary Meridians reveal their choreography and energy becomes directly experiential.

1. Historical and Theoretical Foundations of the Extraordinary Meridians

1.1 The Long Journey of the Extraordinary Meridians: A Historical Overview

The Extraordinary Meridians are mentioned in the Huangdi Neijing (Yellow Emperor’s Inner Classic), compiled between approximately the second century BCE and the second century CE. Within this corpus, the Suwen (Basic Questions) provides the theoretical foundations, while the Ling Shu (Spiritual Pivot) offers practical guidance on meridians and Acupuncture points.

However, these texts provide early references rather than a systematised theory of the Extraordinary meridians. Later, the Nan Jing (Classic of Difficult Issues), traditionally dated to the first or second century CE, clarified these often cryptic passages, notably by systematising the relationships between meridians, Qi and diagnostic patterns.

In parallel, Daoist External Alchemy (Waidan) was developed, establishing a cosmological and energetic framework that later became the foundation of Internal Alchemy (Neidan). From around the tenth century onwards, Neidan elaborated the Extraordinary Meridians as deep channels connecting body and mind. This vision is clearly illustrated in the wonderful image of the Neijing Tu (Diagram of the Inner Classic). While the most famous version of this diagram dates from the 19th century, it nevertheless visually synthesises the early classical Neidan concepts of internal energy circulation, in which several Extraordinary Meridians are symbolically represented through their trajectories and interconnections.

During the Ming dynasty, Li Shizhen systematised these insights in his Qi Jing Ba Mai Kao (Study of the Eight Extraordinary Meridians). Shortly thereafter, the Zhenjiu Dacheng (Great Compendium of Acupuncture and Moxibustion, 1601) further consolidated the status of Extraordinary Meridians within the meridian system.

1.2 The Extraordinary Meridians: Deep Reservoirs of Qi

Within classical Chinese medical theory, the Eight Extraordinary Meridians function as deep reservoirs or ‘lakes’ of Qi, closely connected with Jing. They absorb and redistribute deficiencies or excesses arising within the flowing rivers of the twelve primary meridians, thus maintaining balance throughout the entire energetic system.

They do not possess an independent network of acupuncture points, with the exception of the Ren Mai and Du Mai, which do have their own points. Instead, they are accessed via opening points located on the primary meridians.

Although classical texts often describe a single directional flow, clinical and experiential practice assumes that Qi within these deep channels can move in both directions, depending on what regulation is required.

Classical sources associate the Extraordinary Meridians with the Extraordinary Fu (Curious Organs) and with major life phases such as growth, maturation, and ageing. They are also understood as supporting the constitutional layer: the underlying pattern that partly determines how a person functions, responds, and recovers.

1.3 The Unfolding Body: Extraordinary Meridians as a Blueprint from Conception

In classical Chinese medical embryology, the Extraordinary Meridians are the first energetic structures of the human body to form during conception and embryonic development. They arise before the twelve primary meridians and lay down a blueprint that underpins growth and development.

Although no single universal sequence ap pears across all classical texts, the most widely accepted traditional order — according to sources such as the Nan Jing, Ling Shu, and classical embryological models — is as follows.

The first meridian to emerge is the Chong Mai, the central axis of the embryo. It arises from the combined Essence of both parents and forms the ‘Sea of Blood and Meridians’, from which all other meridians originate.

From the Chong Mai, the Ren Mai develops as the anterior midline, regulating Yin, embodiment, and reproduction. The Du Mai forms the posterior midline, supporting Yang, directionality, and the nervous system. Together, these three constitute the fundamental structure of the body.

Subsequently, the Dai Mai emerges as the only horizontal meridian, connecting and stabilising the upper and lower body. This is followed by the Yin Qiao Mai and Yang Qiao Mai, which regulate movement, balance, and eye function, and finally by the Yin Wei Mai and Yang Wei Mai, which connect all meridians and integrate the entire energetic system.

In this way, the Extraordinary Meridians form a refined network: core lines for growth, a horizontal stabilising axis, dynamic pathways for balance, and connective lines for coherence. They reveal how the body is energetically organised at an early stage, even before physical structures are fully formed, and they offer insight into the subtle yet essential layers of human development.

1.4 The Extraordinary Meridians in Shiatsu Practice

In Shiatsu practice, the Extraordinary Meridians are often accessed when an energetic pattern lies deeper than what can be directly influenced through the primary meridians, and when regulation at a more fundamental level is required.

This may occur, for example, during hormonal transitions (such as puberty or menopause), when working on resilience or sensory clarity, or when seeking greater harmony between body and mind.

The Eight Extraordinary Meridians can be stimulated in various ways. Acupuncture and Shiatsu, much like Tui Na, work through specific opening, coupled, and intersection points. For instance, SP4 (Gongsun — ‘Grandfather-Grandson’) is the opening point of the Chong Mai. While acupuncture focuses on needling, manual therapies like Shiatsu additionally utilize gentle pressure, mobilisations, and stretches to release blockages and balance deficiencies or excesses within the primary meridians.

Energetic practices such as Qi Gong, Neigong, and Daoyin activate these meridians through breathing, movement, and visualisation, thereby supporting the self-regulation of Qi.

Whether through physical touch or conscious practice, the Extraordinary Meridians function as an overarching energetic coordination system. They integrate the Yin and Yang flows throughout the entire body, unlocking a deeper level of balance and wholeness.

2. A Heuristic-Interpretative Three-Phase Model for the Extraordinary Meridians in Shiatsu

2.1 The Encounter as a Foundation for Transformation

Before exploring the phases of the model, I wish to reflect on the essence of the transformational processes we all undergo as human beings. In my view, the most important foundation of a Shiatsu session is not the technique or theoretical knowledge itself, but the practitioner’s capacity to create a holding field. This is a safe space where the client is simply allowed to be — a place where they feel accepted and understood with compassion at their deepest core.

I see Shiatsu not so much as an intervention performed by an expert, but rather as an encounter arising from an equal connection between human beings. Within this connection, the client is supported to (re)discover their own path, to seek out internal and external resources, and to reposition themselves in the world, in alignment with their soul’s mission.

Within this field of presence, the Shiatsu practitioner draws upon their professional expertise. I consider the choice from the repertoire of techniques and acupuncture points, and the timbre of one’s own inspiration, as choosing the right musical score. During a session, a melody unfolds spontaneously — sometimes as a carefully crafted composition, more often as a free improvisation in the cadence of the moment. Here, the extraordinary meridians form the deep fundamental tone that carries this movement.

2.2 Conceptual Positioning of the Model

Within Taoist internal alchemy (Neidan), the Extraordinary Meridians are understood as deep reservoirs of energy within a broader process of transformation. While this tradition outlines a path of inner cultivation rather than direct clinical protocols, the alchemical transformation of Jing through Qi to Shen offers a valuable conceptual framework for contemporary Shiatsu practice:

“Since most Taoist methods of internal alchemy are based on the transformations of Essence into Energy, Energy into Spirit, and Spirit into Emptiness, the Extraordinary Meridians are at the root of the entire process of self-transformation.”
— Amaël Ferrando, 2022 (author’s translation)

This article introduces a heuristic, interpretative three-phase model — comprising stabilization, transformation, and integration — as a framework for engaging with deep transformational processes via the Extraordinary Meridians. The model is still in an exploratory phase and resonates with both classical Eastern thought and contemporary trauma-informed approaches; it is intended explicitly as a framework for exploration rather than a fixed protocol.

While the parallels with modern somatic approaches are interpretative, they may open a fruitful dialogue between classical energetic models and contemporary somatic perspectives. The aim is not to establish historical or scientific equivalences, but to offer a reflective framework that deepens the experiential dimension of Shiatsu practice.

2.3 The Three-Phase Model: Stabilization — Transformation — Integration

2.3.1 Phase 1: Stabilization and Orientation (Yin and Yang Qiao Mai)

In this phase, the focus lies on strengthening or restoring a physical foundation. Classically, the Yin and Yang Qiao Mai are associated with posture, balance, and the regulation of Yin and Yang (Giovanni Maciocia, 2006; Ann Cecil-Sterman, 2013).

In the model proposed here, these classical functions are translated into contemporary concepts such as proprioception and sensory orientation. In this context, the Qiao Mai function as the energetic foundation of embodiment: the client’s capacity to perceive themselves safely in relation to their environment.

This stabilizing function is traditionally accessed through the opening points KI6 (Zhaohai — ‘Shining Sea’) and BL62 (Shenmai — ‘Extending Vessel’), located at the level of the ankles. In practice, KI6 can be experienced as supporting rest, internal anchoring, and Yin regulation, while BL62 is more associated with external orientation, movement, and Yang activation. Together, they establish a dynamic polarity between rest and activation, and between the inner and outer worlds.

The Yin and Yang Qiao Mai traditionally meet at BL1 (Jingming — ‘Bright Light’), a point associated with the eyes and clarity of perception. In contemporary somatic approaches, this relationship can be read symbolically as a connection between visual orientation, attention, and the regulation of activation and alertness. This parallels the concept of ‘orientation’ within trauma-informed models such as the NeuroAffective Relational Model (NARM) by Laurence Heller and Aline LaPierre (2012), in which safe sensory orientation to the environment plays a vital role in regulating the tendency toward dissociation — the loss of contact with immediate bodily experience.

The Qiao Mai thus constitute the first step: a foundation of safety and presence. From this stable base, the system can begin to reorganize itself, paving the way for further development and deep transformation.

2.3.2 Phase 2: Structural Organization and Transformation (Dai, Ren, Du, and Chong Mai)

Once sufficient rest and foundational safety have been restored via the Qiao Mai, the body is given the opportunity to release patterns at a deeper level. From this stability, the system can transition into deeper constitutional layers.

The Dai Mai as a Dynamic Container

Before addressing the central vessels (Ren, Du, and Chong Mai), we turn to the Dai Mai, which is opened via GB41 (Zulinqi — ‘Foot Overlooking Tears’). As the only horizontal meridian in the body, it connects the upper and lower halves and organises the energetic space. In this model, the Dai Mai functions as a safe ‘container’. This principle resonates with the insights of Peter Levine, who describes how the body requires a secure physiological foundation to integrate deeply stored tension:

“A resilient ‘container’ is built by creating a body-based sense of self that is capable of containing and ‘holding’ intense sensations and emotions without being overwhelmed.”
— Peter Levine, 2010

Within this heuristic framework, the Dai Mai can be intentionally utilized to support structure, space, and cohesion within the system. For the deeper significance of the acupuncture points on this meridian, I draw upon the interpretations of Debra Kaatz (2023), who describes the Dai Mai as a dynamic axis that aids in centering, creating space, and binding experiences. Clinically, this can be translated into three complementary functions, inspired by Levine’s concept of a resilient container: providing the body with a safe foundation to hold intensity, while allowing for flexible movement and maintaining organization.

• Structure and Centering: When a client feels ungrounded, fragmented, or out of balance, the Dai Mai can help restore a sense of vertical organization and physical foundation. In this model, GB26 (Daimai — ‘Girdle Vessel’) is approached as the central point that supports centering, grounding, and structural cohesion (Kaatz). This corresponds with Levine’s idea that a coherent, organized container helps the system integrate experiences.
• Space and Mobility: When a client feels stuck in internal tension, rigidity, or experiences difficulty adapting to changing circumstances, the Dai Mai can help re-establish space and flexibility. GB27 (Wushu — ‘Five Pivots’) supports fluid movement within physical, emotional, and cyclical processes. Nadia Volf (2020) links the ‘Five Pivots’ to five muscle groups or tendons around the pelvis that hold the body upright like a tree. Much like the trunk and branches of a tree, these tendons provide both structure and flexibility, allowing the body to adapt without holding onto tension. This aligns with Levine’s idea of a container that provides sufficient space to fully experience sensations and movements.
• Cohesion, binding, and containment: When experiences, emotions, or inner processes feel fragmented, the Dai Mai can contribute to holding different layers of experience together into a coherent whole. GB28 (Weidao — ‘Linking Path’) supports the ability to connect various aspects of experience, fostering a sense of inner consistency and binding (Kaatz), while simultaneously providing a natural boundary. This allows the client to sustain the integration without becoming overwhelmed, paralleling Levine’s emphasis on a safe container that both protects and supports.

The role of the Dai Mai is dynamic: it is not only the safe container at the beginning, but can be revisited during the deep transformation within the other central vessels as an energetic anchor to ‘titrate’ and integrate the experience.

The Central Vessels: The Core of Transformation

From within this safe boundary, the work of the Ren, Du, and Chong Mai unfolds. Here, we touch the vital core of the system: the deep dynamics where essential change takes place. At this level, the practitioner can make a focused choice for the meridian that resonates most with the client’s personal theme:

• Ren Mai — LU7 (Lieque — ‘Broken Sequence’): focus on self-care, nourishment, and connection to the inner world.
• Du Mai — SI3 (Houxi — ‘Back Stream’): focus on autonomy, direction, and the capacity to stand upright in the world.
• Chong Mai — SP4 (Gongsun — ‘Grandfather-Grandson’): focus on the vital origin, the blueprint of being, and deep constitutional transformation.

Together, these four primary vessels (Dai, Ren, Du, and Chong Mai) form a structural framework in which the client experiences not only energetic support, but where space is facilitated for a fundamental reorientation of their entire being.

2.3.3 Phase 3: Integration and Coherence (Yin and Yang Wei Mai)

The Yin and Yang Wei Mai function as connecting channels that integrate the system into a coherent whole (Giovanni Maciocia, 2006; Ann Cecil-Sterman, 2013). In this final phase of the model, they support the integration of the client’s internal process. They help ensure that what has been set in motion during the session takes root in everyday functioning:

• Yin Wei Mai — PC6 (Neiguan — ‘Inner Gate’): This point opens the vessel that interconnects the Yin meridians. Although the Yin Wei Mai is often associated with access to the inner world, in this model it fulfills a crucial role in integration: it helps to anchor the insights gained and the deep transformation from the central vessels within the structure of the heart and the self-image.
• Yang Wei Mai — SJ5 (Waiguan — ‘Outer Gate’): This point opens the vessel that connects the Yang meridians. It supports the client in carrying the new energetic balance outward, into interactions with the environment and the demands of everyday life.

Together, the Wei Mai form the essential bridge from the treatment space back into lived reality, ensuring that the transformation initiated in Phase 2 does not remain a temporary experience, but becomes a sustained change.

2.4 Contextualizing the Model

This three-phase model is offered as an expansion of existing clinical application models for the Shiatsu practitioner. It provides a broader perspective on the potential sequence in which the Extraordinary Meridians can be applied within a session. Practice always demands flexibility and attunement to the unique needs of the client: within any context, the sequence can be adapted, and different Extraordinary Meridians may take priority.

For instance, in the context of pregnancy support (Suzanne Yates, 2003), the Chong Mai is often emphasized early in the process due to its strong constitutional and developmental role, whereas in other Shiatsu contexts, different Extraordinary Meridians may come to the fore.

Closing Remarks: An Interlude to the Dance of Qi

This first part has explored the historical and theoretical foundations of the Extraordinary Meridians and introduced a heuristic, interpretative model for their application in Shiatsu.

In Part 2, the focus shifts from concept and structure toward experience and movement. The Extraordinary Meridians are approached as a choreographic field of Qi, in which the Yin and Yang Qiao Mai appear as dance partners within a living energetic dynamic.

References & Sources

Classical Texts

• Li Shizhen. Qi Jing Ba Mai Kao (Study of the Eight Extraordinary Meridians). Ming Dynasty.
• Huangdi Neijing (The Yellow Emperor’s Inner Classic): Suwen & Ling Shu.
• Nan Jing (The Classic of Eighty-one Difficulties).

Modern Literature (Shiatsu & Acupuncture)

• Cecil-Sterman, A. (2013). Advanced Acupuncture: A Clinic Manual. Classical Wellness Press.
• Ferrando, A. (2022). Les Merveilleux Vaisseaux: Manuel de pratique clinique. Éditions Quintessence.
• Kaatz, D. (2023). Acupuncture Meditations: I Ching Transformations. Healing Arts Press.
• Maciocia, G. (2006). The Channels of Acupuncture. Churchill Livingstone.
• Volf, N. (2020). La Symphonie des Méridiens du Corps. Éditions de l’Observatoire.
• Yates, S. (2003). Shiatsu for Midwives. Elsevier Health Sciences.

Somatic & Psychological Sources

• Heller, L., & LaPierre, A. (2012). Healing Developmental Trauma (NARM). North Atlantic Books.
• Levine, P. A. (2010). In an Unspoken Voice: How the Body Releases Trauma and Restores Goodness. North Atlantic Books.
• Roth, G. (1989). Maps to Ecstasy: Teachings of an Urban Shaman. New World Library.