Fundamentals

Table of Contents

The Base

The sooner you begin studying the fundamentals, the better they will serve as a guiding focus throughout your lifetime of practice. The degree to which you understand these concepts defines your level of mastery. This section lists core ideas that should be introduced to beginners early, and which also provide the depth and substance for a lifetime of practice.

Fundamentals are the compass. They orient you when practice gets confusing, and they keep your progress from being built on luck, hype, or habit.

Stance

Stance determines what movements are available to you, how quickly you can act, and how well you can generate or receive force. Because no stance can optimize everything at once, effective fighters choose stances that fit distance, intention, and circumstance. Stance also links body, mind, and spirit—how you stand shapes how you move, how you feel, and how you respond under pressure.

Stance is a tool, chosen in response to distance, intention, and proximity—not a fixed pose.
Different stances privilege different capacities: speed, mobility, lateral movement, infighting, or wrestling.
Any stance that optimizes one variable too far necessarily sacrifices others; therefore, balance beats extremity.
Posture and stance are mechanically linked, but also psychologically linked—how you hold yourself shapes how you think and feel, and vice versa.
Poor posture is not just inefficient; it embodies fear and can reinforce it.

In short: stance governs movement options, stability, power, and state of being—all at once.

Lines of Power

Understanding strong and weak lines allows you to apply force where it is most effective and avoid resisting force where your structure is vulnerable. In combat, these lines are constantly shifting, especially once contact is made. Learning to orient your structure—and adapt it in motion—lets you conserve effort, disrupt your opponent’s balance, and turn pressure into advantage rather than collapse.

Strength and weakness are directional, not absolute—even in sound biomechanics.
“Strong” and “weak” lines depend on orientation, contact, and timing, not muscle or toughness.
These lines exist before contact, during contact, and after contact, whether armed or unarmed.
In live combat, lines of power are dynamic and shifting, not static diagrams.
Sensory discovery (being pushed or pulled) is a primary way to know these lines, not intellectual abstraction.
In grappling, structure expands beyond the individual body—you and your opponent become a single coupled system.
Control is not about rigidity, but about transforming weak lines into strong ones through adjustment.
The “four-legged beast with two minds” is a metaphor that points to mutual dependency, feedback, and contest for control rather than isolated technique.

Lines of power explain why orientation, contact, and adaptability matter more than brute force, especially under pressure.

Ways to Move

Movement determines how you manage distance, angle, and timing in relation to an opponent’s attack. Although the possibilities appear endless, effective movement is built from a small number of simple, disciplined actions. Understanding these basic ways of moving allows you to preserve structure, avoid vulnerable positions, and continually orient your strong line into your opponent’s weak line as the fight unfolds.

Movement is defined relative to an opponent’s attack, not in abstract space.
The opponent’s strong line toward your centreline establishes the primary reference axis.
All footwork options are variations around that axis: forward, oblique, lateral, or rearward.
Despite infinite-looking footwork patterns, there are actually very few fundamental ways to move.
Shuffling and stepping are the base actions; everything else is a recombination.
Mechanical discipline matters—crossing ankles, especially under pressure, can be structurally dangerous at times.
Directional paths (straight, arc, spiral, vertical) and orientation changes (step, pivot, spin) interact continuously.
Good movement preserves your strong line while steering you toward your opponent’s weak line.
The listed movements are not techniques so much as expressions of the same underlying principles.

Movement is not decorative—it is how structure, timing, and line control are expressed in space.

Effortless Power

Effortless power allows you to act decisively without relying on strength or tension. By understanding how speed, structure, leverage, and connection to the ground work together, you can generate effective force while remaining relaxed and responsive. This not only increases impact, but preserves endurance, reduces telegraphing, and allows power to emerge naturally under dynamic conditions.

Power is framed operationally: the ability to do what you intend, when you intend, without unnecessary effort.
“Effortless” does not mean weak or passive; it means high output with low internal friction.
Kinetic energy provides a useful lens, but effortless power is not just a simplistic formula obsession.
Speed matters more than mass mathematically, but effective mass—rooted through structure and the ground—is the common factor in people who actually hit hard.
Effective mass is not about muscle; it’s about connection: weapon → body → ground.
Architecture matters: triangles, alignment, strong lines. Leaning for reach trades mass and structure for distance.
Leverage and gravity are force multipliers, especially in grappling and binds.
Speed is not just “move faster”; it is the result of:
- eliminating unnecessary tension,
- pre-establishing a standing leg,
- optimizing posture for the next action, not the current pose.
Static stances are misleading; utility lives in dynamic stances, in the transitions.
Relative speed—not absolute speed—is what determines who wins exchanges. The receiver often controls this.
Weapon handling must preserve the line of power through the weapon while sequencing movement from hands through hips to feet.
The final convergence—speed + apparent mass + timing—is not a trick or a technique, but a lifelong refinement.

Effortless power is the outcome of structure, timing, relaxation, leverage, and awareness coming together in motion.

Finding the Voids

Finding the void is the difference between forcing technique and acting at the right moment. By understanding distance, measure, timing, and awareness, you learn when it is possible to strike without being struck. This skill governs entry, initiative, and survival, and it transforms combat from a contest of speed or strength into one of judgment, perception, and control.

This expression describes how opportunity actually appears in combat, not how techniques are supposed to work in theory.

More precisely:

“Finding the void” is not mystical; it is the convergence of timing, distance, position, and awareness.
A technique does not create opportunity—the opportunity allows the technique to occur.
Safety in combat is conditional and dynamic. It lies:
- out of range,
- in range but positioned safely,
- in range but protected by structure or weapon.
A True Fight is not simply avoiding injury; it is sustained control, awareness, and refusal to be caught.
A True Place is a moment where you can strike and cannot be struck—but it is fleeting and must be used decisively.
Range is mechanical reach; measure is range plus timing and psychology.
Measure includes fear, aggression, intent, and will—not just distance.
The Japanese term Ma-ai captures this union of distance, timing, and psychological tension.
The inside and outside edges of the measure define where:
- escape is still possible,
- influence without commitment becomes possible.
Skilled fighters can manipulate opponents using the measure, provoking early attacks or retreat.
Timing (true times vs false times) is inseparable from distance:
- closer actions are faster,
- farther actions require more body involvement.
Leading with the weapon preserves safety; leading with the body creates vulnerability.
Entry is governed by initiative and timing categories that converge across traditions:
- before, during, after from the west;
- sen, sen no sen, go no sen from Japan;
- with going in, irimi, as a decisive preemptive moment.
Offense and defense are not opposites; they are expressions of the same timing relationships.
Tempo is not rhythm alone—it is the manipulation of expectation and awareness.
Ultimately, the void appears where your opponent is unprepared to respond, even for an instant.

This is how and when fighting actually works, stripped of fantasy, bravado, and static thinking.

Mind, Body, and Spirit

Combat performance depends as much on internal state as on physical skill. Understanding how posture, breathing, emotion, attention, and perception interact allows you to remain effective under stress rather than becoming tense, distracted, or overwhelmed. Training mind, body, and spirit together builds clarity, self-control, and resilience when conditions are demanding.

Combat stresses the system physiologically and psychologically; efficiency and clarity matter as much as conditioning.
Under stress, excess tension is the enemy—muscles interfere with one another, perception narrows, judgment degrades.
People lean differently by temperament:
- some over-intellectualize,
- some default to physicality,
- some rely heavily on emotion or intuition.
Beginners often try to think their way through moments that must be felt and enacted.
Intellectualizing has its place—but mostly after practice, not during execution.
Mind, body, and spirit are not separate domains; they are different expressions of the same system.
Posture influences emotion and cognition; courage can be trained somatically, not just willed.
Breathing is a primary regulator:
- abdominal breathing for calm, endurance, emotional control,
- reverse breathing for short bursts of rallying under extreme stress.
These breathing methods are practical tools, not spiritual ornamentation.
Vision and gaze are information channels:
- you can read intent, hesitation, commitment,
- you can project false information,
- you can destabilize resolve.
Even when masked, these dynamics persist—the eyes are the clearest training medium, not the only one.
Studying the eyes teaches you about your opponent and yourself—especially your own reactions to threat.

This explains how internal state governs external performance, and how that state can be trained deliberately rather than left to chance.

Maximum Effectiveness

Maximum effectiveness does not come from a single advantage, but from the interaction of physical capacity, technical knowledge, structural efficiency, and inner clarity. Understanding these four pathways helps you recognize both your strengths and your limits, and shows how different combinations can produce decisive capability. This perspective prevents false hierarchies and encourages deliberate development rather than imitation or wishful thinking.

Strength is acknowledged honestly—not romanticized, not denied—and placed partly outside moral judgment.
Knowledge of vital areas is an expression of precision and consequence awareness, not brutality.
Biomechanics is a multiplier that can partially offset size and strength disparities.
Emptiness and fullness are treated as psychological–spiritual states that directly manifest physically:
- posture,
- gaze,
- initiative,
- decisiveness.
Fullness is not arrogance; it is clarity and the ability to project energy outward.
Emptiness is not humility; it is the inability to act or receive appropriately, depending on context.
These states govern learning and teaching as much as fighting.
It is not necessary to be perfect:
- two gates = dangerous,
- three = formidable,
- four = rare and excessive.
The model is combinatorial, not hierarchical—different paths suit different people.

This explains why mastery is plural, and why effectiveness is not reducible to technique, fitness, or mindset alone.