The Six Levels of Internal Development in Internal Martial Arts

A Progressive Model of Integration

Level One: Li – Physical Strength

Level Two: Jin – Refined Force

Level Three: Yi – Intention

Level Four: Qi – Energy

Level Five: Shen – Consciousness

Level Six: Kong – Emptiness

The internal martial arts, commonly referred to as Neijia, represent a sophisticated system of human development that integrates body, mind, and consciousness through progressive refinement. The three most widely recognized internal martial arts are Hsing Yi, Tai Chi Chuan and BaguaZhang. Within these traditions, a frequently cited developmental model describes six interrelated levels: Li (力), Jin (勁), Yi (意), Qi (氣), Shen (神), and Kong (空). While not universally standardized across all lineages, this framework reflects a coherent synthesis of classical Chinese martial, medical, and philosophical thought (Yang, 1998; Chen, 2004; Kohn, 2008).

These levels are not discrete stages to be completed and abandoned, but rather nested layers of integration, each refining and reorganizing the preceding level. The progression reflects a shift from gross physical force toward subtle awareness and spontaneous action, paralleling Daoist internal alchemical models such as Jing–Qi–Shen–Xu (emptiness) (Kohn, 2008).

Level One: Li (力) – Physical Strength

Li refers to raw muscular strength and mechanical force, representing the most basic level of martial capacity. At this stage, movement is driven primarily by localized muscle contraction, often resulting in segmented and inefficient force production.

From a biomechanical perspective, Li relies heavily on voluntary muscular activation and leverage, with limited integration across the kinetic chain (McGinnis, 2013). While essential as a foundational attribute, Li is inherently limited. It is expendable, fatigue-prone, and easily countered by superior structure or timing.

Traditional training methods emphasize:

Static postures (e.g., horse stance, bo stance, twisted stance, etc.)
Repetitive conditioning drills
Strength and endurance development

Despite its limitations, Li provides the necessary structural and physiological base upon which higher levels are cultivated.

Level Two: Jin (勁) – Refined Force

Jin represents a qualitative transformation of force, from isolated muscular effort to integrated, whole-body power. It is often described as “trained strength” or “refined force,” characterized by efficient transmission of energy through aligned structure and connective tissues (Yang, 1998).

Biomechanically, Jin reflects:

Kinetic chain integration
Elastic recoil through fascia and tendons
Ground-reaction force transmission

This level corresponds with modern understandings of tensegrity and fascialconnectivity, where force is distributed across the entire body rather than generated locally (Myers, 2014).

Classical expressions of Jin include:

Peng (expansive, buoyant force)
Lu (yielding and redirecting)
Ji (pressing)
An (sinking)

The transition from Li to Jin marks a critical threshold in internal training: effort decreases while effectiveness increases.

Level Three: Yi (意) – Intention

Yi, often translated as intention or intentional awareness, serves as the directive principle that organizes movement and force. In classical texts, it is said that “Yi leads Qi, and Qi leads the body” (Yang, 1998).

At this level, movement becomes:

Less reliant on conscious muscular control
More guided by pre-reflective awareness
Increasingly efficient and anticipatory

Neuroscientifically, Yi may be understood as the integration of:

Motor planning (premotor cortex)
Attentional control networks
Sensorimotor prediction

This aligns with research demonstrating that intention and attention significantly influence motor coordination and performance efficiency (Wulf & Lewthwaite, 2016).

The practitioner begins to experience a shift from doing movement to allowing movement to be directed internally.

Level Four: Qi (氣) – Functional Energy

Qi is among the most debated concepts in both Eastern and Western discourse. Rather than interpreting Qi as a mystical substance, contemporary scholarship often frames it as a functional integration of physiological systems, including:

Breath and respiratory efficiency
Circulation and fluid dynamics
Neural signaling and proprioception
Fascial continuity

From this perspective, Qi represents the emergent coherence of the organism as a unified system (Chen, 2004; Jahnke, 2002).

Empirical studies on Qigong and Tai Chi suggest improvements in:

Cardiovascular regulation
Balance and coordination
Stress reduction and autonomic balance

These findings support the interpretation of Qi as system-wide functional optimization rather than an isolated energy entity (Wayne & Kaptchuk, 2008).

Level Five: Shen (神) – Consciousness and Presence

Shen refers to consciousness, awareness, and the quality of presence. In both Traditional Chinese Medicine and Daoist philosophy, Shen is associated with the clarity and stability of the mind (Kohn, 2008).

At this level:

Perception becomes refined and immediate
Emotional reactivity diminishes
Action arises from calm awareness rather than impulse

Shen is closely related to constructs studied in modern psychology, such as:

Mindfulness
Meta-awareness
Flow states

Research indicates that such states are associated with enhanced performance, reduced stress, and improved cognitive flexibility (Csikszentmihalyi, 1990; Tang et al., 2015).

In martial application, Shen manifests as timing, sensitivity, and effortless responsiveness.

Level Six: Kong (空) – Emptiness

Kong, often translated as emptiness, represents the culmination of internal development. Rooted in both Daoist and Buddhist philosophy, it does not imply nihilism, but rather freedom from attachment, rigidity, and fixed identity (Kohn, 2008).

At this level:

Action is spontaneous and uncontrived
There is no separation between intention and execution
The practitioner is no longer bound by technique or conceptual frameworks

This state parallels advanced descriptions of:

Non-dual awareness
Effortless action (wu wei)
Self-transcendent experience

From a performance standpoint, Kong reflects complete integration, where body, mind, and environment function as a unified field.

Integrative Perspective: From Force to Emptiness

The progression from Li to Kong reflects a continuum of refinement:

Li becomes organized into Jin
Jin is directed by Yi
Yi mobilizes Qi
Qi expresses through Shen
Shen dissolves into Kong

Importantly, advanced practitioners do not abandon earlier levels; rather, they embody all levels simultaneously, with each functioning in harmony.

This model closely parallels:

Daoist internal alchemy (Jing → Qi → Shen → Xu)
Psychophysiological integration models
Contemporary frameworks of embodied cognition

Implications for Training and Practice

A critical issue in modern practice is the misinterpretation or premature pursuit of higher levels. Many practitioners:

Remain at the level of Li while believing they are expressing Jin
Seek Qi experiences without structural integrity
Conceptualize Yi without embodied application

Effective training requires:

Structural foundation (Li → Jin)
Intentional refinement (Yi)
Physiological integration (Qi)
Conscious awareness (Shen)
Letting go of fixation (Kong)

This progression underscores a central principle of internal arts:

True development is not the accumulation of techniques, but the refinement of the practitioner.

References

Chen, M. (2004). Chen style taijiquan: The source of taiji boxing. New World Press.

Csikszentmihalyi, M. (1990). Flow: the psychology of optimal experience. ResearchGate. https://www.researchgate.net/publication/224927532_Flow_The_Psychology_of_Optimal_Experience

Jahnke, R. (2002). The healing promise of Qi: Creating extraordinary wellness through Qigong and Tai Chi. McGraw-Hill.

Kohn, L. (2008). Chinese Healing Exercises: The Tradition of Daoyin. University of Hawai’i Press. http://www.jstor.org/stable/j.ctt6wqs77

McGinnis, P. M. (2013). Biomechanics of sport and exercise (3rd ed.). Human Kinetics. Biomechanics of Sport and Exercise (3rd Ed)

Myers, T. W. (2014). Anatomy trains: Myofascial meridians for manual and movement therapists (3rd ed.). Elsevier.

Tang, Y. Y., Hölzel, B. K., & Posner, M. I. (2015). The neuroscience of mindfulness meditation. Nature Reviews Neuroscience, 16(4), 213–225. https://doi.org/10.1038/nrn3916

Wayne, P. M., & Kaptchuk, T. J. (2008). Challenges inherent to t’ai chi research: part I–t’ai chi as a complex multicomponent intervention. Journal of alternative and complementary medicine (New York, N.Y.), 14(1), 95–102. https://doi.org/10.1089/acm.2007.7170a

Wulf, G., & Lewthwaite, R. (2016). Optimizing performance through intrinsic motivation and attention for learning: The OPTIMAL theory of motor learning. Psychonomic Bulletin & Review, 23(5), 1382–1414. https://doi.org/10.3758/s13423-015-0999-9

Yang, J. M. (1998). The root of Chinese Qigong: Secrets of health, longevity, and enlightenment. YMAA Publication Center.

Legendary Origins of Tai Chi: Zhang Sanfeng and Daoist Transmission

Long before Chen Village records appear in the 17th century, traditional accounts attribute Tai Chi’s creation to the Daoist monk Zhang Sanfeng, often associated with Wudang Mountain. According to legend, Zhang observed a fight between a snake and a crane. The snake yielded and coiled; the crane struck with precision. From this encounter, he is said to have synthesized principles of softness overcoming hardness, a living embodiment of Yin and Yang theory (Henning, 1994; Wile, 1996).

While modern historians generally regard this account as mythological rather than empirically verifiable, its philosophical significance is undeniable. The story reflects core Taijiquan principles:

Yielding over resisting
Circularity over linear force
Softness overcoming rigidity
Strategic adaptability

Henning (1994) notes that the Zhang Sanfeng narrative likely emerged during the late Ming and early Qing periods as part of broader cultural movements that sought to root martial systems in Daoist cosmology.

Thus, although Chen style represents the earliest documented system, the conceptual foundations of Tai Chi are traditionally traced to Daoist internal cultivation traditions centuries earlier.

Chen Style: The Foundational Documented System

Chen style originated in Chen Village (Chenjiagou), Henan Province, during the 17th century. It is traditionally attributed to Chen Wangting (1600–1680), a retired Ming dynasty military officer who synthesized battlefield methods, classical philosophy, and health exercises (Wile, 1996).

Chen style preserves features that clearly reflect martial structure:

Silk-reeling spirals (chan si jin)
Alternation of slow movement and explosive release (fa jin)
Low stances
Cannon Fist (Pao Chui)
Embedded combat applications

Scholars note that Chen style retains overt expressions of issuing power and structural coiling less visible in later styles (Henning, 1994).

Philosophical Foundations Across All Authentic Systems

Regardless of stylistic differences, authentic Tai Chi systems are unified by shared theoretical foundations rooted in classical Chinese cosmology.

Yin and Yang Theory

Tai Chi (Taiji) itself refers to the “Supreme Ultimate,” the dynamic interplay of Yin and Yang described in the Yijing (Book of Changes). Every movement in Tai Chi expresses:

Substantial and insubstantial
Open and close
Rising and sinking
Full and empty

This alternation is not metaphorical — it is biomechanical, energetic, and tactical.

Wuxing (Five Phases)

The Five Phase theory — Wood, Fire, Earth, Metal, and Water — informs martial strategy, organ theory, and energetic transformation. Although more explicit in some internal arts like Xingyiquan, Wuxing principles underlie Tai Chi’s cyclical power generation and transformational mechanics (Sun, 2003; Wile, 1996).

Bagua (Eight Trigrams)

The Eight Trigrams symbolize dynamic change and directional transformation. Circular stepping, angular redirection, and strategic yielding in Tai Chi mirror Bagua cosmology. Even when not overtly labeled, trigram theory informs structural shifts and directional transitions embedded in form practice.

Thus, while the choreography differs among Chen, Yang, Wu, and Sun styles, their cosmological framework remains consistent.

Yang Style: Adaptation and Public Transmission

Yang Luchan (1799–1872) studied under Chen Changxing and later taught in Beijing (Henning, 1994; Wile, 1996).

Adaptations included:

Smoother continuity
Reduced explosive emphasis
Elevated stances
Standardized pacing

His grandson Yang Chengfu formalized the large-frame slow form now widely practiced (Yang, 2005).Yang style reflects pedagogical expansion rather than dilution.

Wu Style: Refinement and Synthesis

Wu Jianquan studied within the Yang lineage and developed a system characterized by:

Narrower stance width
Slight forward inclination
Subtle structural alignment
Emphasis on push-hands sensitivity

Wu style reflects internal refinement and biomechanical precision rather than overt amplitude (Henning, 1994).

Sun Style Tai Chi

Sun Lutang (1860–1933) was already an accomplished practitioner of Xingyiquan and Baguazhang before studying Tai Chi. His system integrates principles from these “internal sister arts,” emphasizing:

Agile step-follow footwork
Upright posture
Smooth transitions
Strong reliance on intent (Yi)

Sun’s writings illustrate the synthesis of internal martial theory across systems (Sun, 2003). His style demonstrates that Tai Chi’s evolution included both lineage transmission and cross-disciplinary integration.

Why 108? Symbolism and Counting Variations

Traditional long forms are often referred to as “108 postures.” The number 108 carries symbolic significance in Chinese and Buddhist traditions, often representing completeness or cosmic totality (Wile, 1996). However, posture counts vary because:

Movements are repeated on both sides
Transitional sequences may or may not be counted
Different lineages classify postures differently

Thus, identical choreography may be described as 85, 88, 108, or more. Historically, long forms functioned as mnemonic archives for transmitting combat principles and conditioning methods, rather than as standardized numerical routines.

The 24 and 48 Forms: Modern Standardization

In 1956, the Chinese government introduced the 24 Simplified Form, derived primarily from Yang style. Its purpose was public health promotion and ease of instruction during a period of national physical culture reform (Frank, 2006). Repetitions and complex martial sequences were reduced to make the system accessible to large populations.

In 1976, the 48 Form was created as a more technically demanding standardized routine incorporating elements from Chen, Yang, Wu, and Sun styles. It was designed for demonstration and competitive wushu contexts (Frank, 2006).

These shorter forms reflect broader sociopolitical changes:

Clan-based transmission → public instruction
Martial preservation → health emphasis
Village secrecy → national standardization

Evolution Rather Than Dilution

From Chen to Yang to Wu to Sun, Tai Chi evolved in response to changing audiences and historical conditions. While stylistic expression differs in frame size, stance height, and visible power release, the core principles remain consistent:

Rooting and structural alignment
Whole-body integration
Relaxed yet connected movement
Intent directing force

Tai Chi is not a static artifact of the past. It is a living system shaped by centuries of adaptation. Its diversity reflects not fragmentation, but resilience

References

Frank, A. (2006). Taijiquan and the search for the little old Chinese man: Understanding identity through martial arts. Palgrave Macmillan.

Henning, S. (1994). Ignorance, Legend and Taijiquan. In Journal of the Chen Style Taijiquan Research Association of Hawaii (Vol. 2, Issue 3, pp. 1–7). https://crnagorataiji.wordpress.com/wp-content/uploads/2015/12/legend-in-tai-chi.pdf

Lutang, S. (2003). A study of Taijiquan. North Atlantic Books.

Wile, D. (1996). Lost T’ai-chi Classics from the Late Ch’ing Dynasty. State University of New York Press. https://doi.org/10.2307/jj.18255579

Yang, J. (2005). The essence and applications of Taijiquan. YMAA Publication Center.

The Iterative Self: How Human Encounters Refine Identity Over Time

Human identity is not static. It is neither a fixed trait nor a finished product. Rather, it is an evolving system continually shaped by interaction. Each encounter, relationship, and exposure to another person serves as a catalyst for subtle psychological recalibration. These recalibrations may be nearly imperceptible in isolation, yet cumulatively they produce profound transformation. In modern language, one might describe this process as a series of “upgrades” or successive versions of the self-emerging through lived experience. Very much the same as how we currently view upgrades to a computer, its operating system or software applications.

This observation is meant to perfectly capture the fluid nature of identity. I chose to eloquently summarize several complex psychological and sociological ideas into a cohesive metaphor. The idea that we are not static beings, but rather perpetual works-in-progress continually shaped by the “data” of human interaction. I find this concept to be quite profound.

Furthermore, I would like to expand upon this concept, exploring the mechanics of how these “upgrades” happen and extending the metaphor of versions and models.

The Human Operating System: An Iterative Process

The comparison to software versions, upgrades, and improved models is quite relevant to modern culture. If our foundational personality, determined by genetics and early childhood, is the “base code” or the operating system (v1.0), then every subsequent interaction acts as a patch, a feature update, or sometimes, a complete system overhaul.

Here is how we can break down this process of refinement through encounter:

1. The Mechanism of the “Upgrade”

How exactly does exposure to another person translate into an internal change?

Osmosis and Mirroring – Often, these adjustments are subconscious. We spend time with someone witty, and we find our own sense of humor sharpening. We hang around someone anxious, and we detect a new hum of nervousness in our own baseline. We “download” their emotional states and behavioral patterns through mirror neurons, adopting features that aren’t natively ours until they become integrated into our code.

The Looking-Glass Self – Sociologist Charles Cooley introduced the concept of the “looking-glass self.” We do not know who we are in a vacuum. We learn who we are by seeing how our actions bounce off other people. Example: You tell a joke you think is funny. The new acquaintance stares blankly. That is critical new data. Your internal model of “what is humorous” receives a minute adjustment based on that feedback failure.

Friction as a Catalyst – Often, the most significant upgrades come not from seamless interactions, but from friction. When we encounter someone whose values or methods diametrically oppose our own, it forces our internal system to run a diagnostic check. We have to actively defend, analyze, or adapt our own viewpoint in response to the challenge.

2. Types of Releases

Not all interactions carry the same weight. By extending my metaphor, I can categorize these encounters:

Minor Patches (v1.1.2 to v1.1.3): These are fleeting encounters, such as with the polite cashier, the person you hold the door for. They reinforce our “social protocols” code, perhaps slightly adjusting our mood, but they don’t change the core programming.

Feature Updates (v1.2 to v1.5): These are friendships, colleagues, or mentors. They introduce new functionality to our personality. From a friend, you might “install” an appreciation for a new genre of music; from a mentor, you might adopt a new framework for problem-solving.

Major Version Releases (v2.0 to v3.0): These are the life-altering relationships: deeply intense romances, traumatic breakups, the birth of a child, or the loss of a loved one. These events dismantle significant portions of the previous code. The person that emerges on the other side often operates so differently that they are unrecognizable from the previous “version.”

3. The Nuance: Not All “Improvements” Feel Good

It is important to recognize that “refinement” or “new model” doesn’t always mean “happier” or “more open.”

Sometimes, the new information we receive from an encounter is harmful. If someone betrays our trust, the “upgrade” we receive is a security patch that makes a firewall thicker. We become more cynical, guarded, or hesitant.

This is still a refinement, an adaptation to the reality presented to us, even if it feels like a regression in overall happiness. It is the system adjusting to ensure survival in a newly perceived hostile environment.

In conclusion, I find this overall perspective as a healthy way to view personal growth. It removes the pressure to be a “finished product.” Instead, it allows us to view every person we meet, whether a brief encounter or a lifelong partner, as a collaborator in the endless project of building the self. We are never truly done; we are just waiting for the next bit of data to arrive.

The Progressive Layers of Tai Chi Practice

In Tai Chi, the idea of “layers” refers to progressive stages of mastery that move from external physical form to refined internal and spiritual development. Although different schools such as Chen and Yang may use varying terminology, the underlying progression remains consistent: one begins with structure, refines internal mechanics, and ultimately reaches effortless integration of body, mind, and spirit.

This development can be understood through three primary layers, expanded technically into five levels of refinement, and supported practically through four pillars of training.

I. The Three Progressive Layers

1. The Physical Layer – Foundation of External Form

Tai Chi begins with the body.

At this foundational stage, practice focuses on learning the “shape” of Tai Chi:

Structure and Alignment: Correct stance work, upright spine, relaxed shoulders and elbows, proper weight distribution, and rooted balance.
Choreography: Memorizing the form sequence until movements become smooth and consistent.
Gross Motor Unity: Training the body to move as a coordinated whole—when one part moves, the entire body moves.

At this level, movements may appear mechanical or segmented. However, the goal is not aesthetic perfection but structural integrity. Without a stable physical frame, higher refinement is impossible.

2. The Internal Layer – Integration of Mind and Energy

Once the external form becomes stable, attention shifts inward.

This stage emphasizes internal mechanics and the coordination of mind, breath, and movement:

Mind Intent (Yi): Movement is directed by calm awareness rather than muscular force. The mind leads.
Energy Flow (Chi): The practitioner begins to experience connectedness through the joints, often trained through spiraling or “silk-reeling” exercises.
Breath Coordination: Deep abdominal breathing synchronizes with the opening and closing of postures, nourishing the body and calming the nervous system.

Here, fluidity replaces stiffness. Internal and external begin harmonizing. Softness starts overcoming force—not as theory, but as embodied understanding.

3. The Martial and Spiritual Layer – Refinement and Effortless Action

At advanced stages, physical skill merges with mental stillness.

Martial Application: Understanding the hidden purpose behind each posture—deflection, redirection, neutralization, and issuing force. Sensitivity skills such as Ting Jin (“listening energy”) develop.
Meditation in Motion: Movement becomes natural and unforced. The practitioner experiences Wu Wei—effortless action.
Refinement of Circles: External movements progress from large circles to smaller and subtler expressions. Eventually, power becomes nearly invisible.

At this level, form dissolves into function. Internal changes are subtle yet profound. Yin and Yang are balanced not as philosophy, but as lived embodiment.

II. The Five Levels of Technical Development

Within this broader three-layer progression, many Chen lineage teachings describe a more detailed five-level refinement:

Form and Posture – Learning external alignment. Movements may feel angular or disconnected.
Chi Flow – Greater smoothness and continuity. Internal and external coordination begins.
Refining the Circle – Transition from large to medium circles. Yi clearly leads Chi.
Advanced Application – Small circles. Intrinsic power (Jing) becomes strong. Defense and attack unify.
From Form to Formless – Mastery. Internal transformation is invisible; balance of Yin and Yang is complete.

These five levels do not replace the three layers—they simply provide finer technical distinctions within them.

III. The Four Pillars of Daily Practice

While layers and levels describe progression, Tai Chi training itself rests on four interrelated practice categories:

Qigong – Breathing and energy cultivation exercises.
Form Practice – The structured movement sequence.
Pushing Hands – Partner drills that develop sensitivity and responsiveness.
Application – Martial interpretation of each posture.

Rather than stages, these are ongoing dimensions of practice. All four reinforce one another and support growth through the progressive layers.

Integration: From Structure to Spirit

Tai Chi mastery is not achieved by abandoning earlier stages but by integrating them.

The body provides structure.
The mind provides direction.
The spirit provides refinement.

The journey moves from:

External form
To internal coordination
To effortless unity

Large movements become small.
Visible circles become subtle spirals.
Force becomes softness.
Effort becomes natural.

Ultimately, Tai Chi evolves from something one does into something one is.

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