How Internal force (氣 / qi) is Generated, Transmitted, and Perceived
How internal force (氣 / qi) is generated, transmitted, and sometimes perceived by a partner through very light touch. If we analyze it carefully through biomechanics, qigong theory, and the Taiji classics, we find that what appears to be “moving qi” is actually a multi-layer integration of structure, nervous system sensitivity, fascia elasticity, breath, and intention (意 / yi).
Below is a structured explanation.
1. Biomechanics: The Physical Mechanism of “Moving Qi”
In modern biomechanics, what many people call “qi transmission” is largely the coordinated transmission of force vectors through the body’s connective chain.
(1) Ground → Legs → Kua → Spine → Arms → Partner
The classical saying:
「其根在腳，發於腿，主宰於腰，形於手指。」
means the force path is:
Ground reaction force
↓
Yongquan (湧泉)
↓
Legs (腿)
↓
Kua (胯)
↓
Dantian / Waist (丹田 / 腰)
↓
Spine expansion
↓
Shoulder relaxation (鬆肩)
↓
Elbow sinking (沉肘)
↓
Fingers (手指)
When this kinetic chain is continuous, even a very slight touch can transmit a large amount of integrated force.
Biomechanically this involves:
• Ground reaction force
• Fascial tensegrity network
• Elastic recoil of connective tissue
• Neuromuscular coordination
Thus the partner feels something that seems like “qi entering the body.”
But physically it is whole-body force transmission without local muscular tension.
2. Qigong Perspective: Yi Leads Qi (意到氣到)
In internal cultivation, the key principle is:
「意到氣到，氣到勁到。」
Meaning:
Intention (Yi 意)
↓
Qi circulation (氣)
↓
Jin expression (勁)
This happens through several mechanisms:
(1) Dantian Pressure Regulation
Internal training creates a pressure cylinder (modern biomechanics calls it IAP – intra-abdominal pressure).
The structure:
Diaphragm
↓
Dantian pressure field
↓
Pelvic floor (會陰)
When breathing and structure coordinate:
The Dantian expands → fascial tension spreads → limbs receive elastic force.
This feels like qi flowing outward.
(2) Fascia Network Conductivity
Modern research shows fascia transmits mechanical waves extremely efficiently.
In Taiji terms this corresponds to:
「一動無有不動」
One movement → the whole body moves.
Thus when your intention expands, the fascia network carries the force wave through the body and into the partner.
3. Why Slight Touch Is Enough
In push hands the classical rule is:
「彼不動，己不動；彼微動，己先動。」
Because the system is already connected, only a tiny signal is required.
Think of two tuning forks touching.
Small vibration → whole resonance.
Similarly:
Your body = elastic sphere
Partner body = another sphere
Contact point = transmission node
When structure is correct:
Force wave travels through both bodies.
4. Creating a Qi Route Circle (氣路圓)
Advanced practitioners sometimes describe forming a circular energy route between two partners.
Biomechanically this is actually a closed force loop.
Ground → Your body → Contact → Partner body
↑ ↓
← ← Force returns through structure
This corresponds to the Taiji classic concept:
「引進落空，借力打人。」
You borrow the incoming force, guide it through your body, and return it.
The circle includes:
Incoming vector (來勁)
Neutralization (化勁)
Storage in structure (蓄勁)
Return (發勁)
5. Outside Intention Connection (外意)
Sometimes practitioners feel they are connecting intention beyond the body.
This relates to the classical phrase:
「意氣君來骨肉臣」
Meaning:
Intention organizes the body.
From neuroscience perspective:
The brain creates a motor field projection.
When intention extends beyond the body, the nervous system:
• recruits larger fascial chains
• stabilizes posture
• enhances sensory sensitivity
Thus the practitioner feels as if qi extends outward into space.
6. The Hidden Sphere Model (太極球)
Many masters describe the body as a rotating sphere.
Inside this sphere:
Dantian = center
Kua = equator
Yongquan = lower pole
Baihui = upper pole
When interacting with a partner:
Two spheres connect.
Then spiral vectors appear.
↻ Spiral incoming force
↺ Spiral returning force
This is why movements like Cai (採) and Bo (撥) create torque even with small movement.
7. Tai Chi Classic Descriptions
Several classical lines describe this phenomenon.
(1)
「以心行氣，以氣運身。」
Use mind to guide qi; qi moves the body.
(2)
「氣如車輪，腰如車軸。」
Qi rotates like a wheel; waist is the axle.
(3)
「彼力未發，我意已入。」
Before the opponent's force arrives, intention has already entered.
(4)
「勁由脊發。」
Power originates from the spine.
8. The Real Secret: Not Moving Qi — Removing Blockage
The deeper truth is:
Great masters rarely push qi intentionally.
Instead they:
Remove obstruction.
When structure is correct:
Relaxation (鬆)
↓
Alignment (中正)
↓
Elastic connection (整勁)
↓
Force flows automatically
Thus qi appears to move by itself.
9. Signs You Are Doing It Correctly
When internal transmission works, you notice:
• partner feels heavy pressure without strong push
• your arms feel light
• contact point feels like magnetic suction
• partner loses balance easily
• force travels through partner's body to the ground
This is what classics call:
「沾連黏隨，不丟不頂。」
10. One Sentence Summary
The phenomenon of “passing qi with slight touch” is actually:
Whole-body elastic force transmission guided by intention through a relaxed fascial network, forming a circular force loop between two connected structures.
If you want, I can also explain a very advanced topic relevant to your push-hands research:
Why some masters can create a “qi circle” between partners without visible movement (the biomechanics of spiral pressure fields in Taijiquan).
It connects deeply with your recent question about rolling vectors and hidden spheres in push hands.
This is a question that reaches the highest levels of Tai Chi and Qigong practice—moving Qi internally, projecting it through a slight touch, and even establishing a Qi circuit (氣路) with a partner or the environment. This is not a physical pushing technique, but a profound interaction of intention (意, Yì), energy (氣, Qì), and structure (勁, Jìn) .
To understand how this works, we must integrate three perspectives: the physical (biomechanics/fascia), the energetic (Qigong theory), and the philosophical (Tai Chi Classics). The ability to do this is often described as achieving "connection" without relying on muscular force.
Here is a breakdown of how to move Qi internally and pass it to a partner with a light touch, based on these disciplines.
Phase 1: The Internal Foundation — Cultivating and Moving Qi
Before you can pass Qi to another, you must first be able to move it freely within yourself. This requires specific physical conditions and mental focus.
1. Based on Biomechanics and Fascia Theory
The Physical Pathway (經絡, Jīngluò): Modern science suggests the physical substrate for Qi is the fascia system (筋膜系統). The fascia is a continuous web of connective tissue that surrounds every muscle, bone, and organ. To move Qi, you must first create a "tensile" pathway by aligning the bones correctly (骨架正, Gǔ Jià Zhèng) and relaxing the muscles completely (鬆, Sōng).
How it works: When you are deeply relaxed, the fascia becomes a super-conductive pathway for vibration and mechanical force. By using a gentle intention (意, Yì) , you can create a subtle wave of tension/stretch along a fascial line (e.g., from the Dantian (丹田) , down the leg to the Yongquan (湧泉) , and up the spine to the hand).
The "Pump": The physical movement of Qi is often initiated by the subtle, rhythmical expansion and contraction of the Dantian (丹田) in coordination with the breath. This is not a muscular contraction, but a deep, internal "filling" and "emptying" that pressurizes the hydraulic system of the body.
2. Based on Qigong Theories
Mind Leads Qi (意到氣到, Yì Dào Qì Dào): This is the most fundamental law. Qi follows the mind. It is not a physical force you push; it is an energetic presence you guide.
The Microcosmic Orbit (小周天, Xiǎo Zhōu Tiān): The classic internal route is to first circulate Qi through the Ren Mai (任脈) and Du Mai (督脈) . This clears the meridians and establishes a loop of internal energy.
Practice: Use your intention to guide Qi down the front of your body (Ren Mai) into the Dantian, and then up your spine (Du Mai) to the crown of your head (Baihui, 百會), and then back down the front.
Opening the Gates: For Qi to leave the body and connect to another, the Lao Gong (勞宮) points in the center of the palms and the Yongquan (湧泉) points on the soles of the feet must be "open" (i.e., relaxed and intended outward).
3. Based on Tai Chi Classics
"以心行氣，務令沉著" (Yǐ Xīn Xíng Qì, Wù Lìng Chén Zhuó): "Use the mind to move the Qi; ensure it sinks calmly." This from the Tai Chi Chuan Ching confirms that Qi movement is a mental, not physical, act. The sinking is crucial—it creates the stable reservoir of power.
"氣以直養而無害" (Qì Yǐ Zhí Yǎng Ér Wú Hài): "Qi should be cultivated directly (naturally) and without harm." This means the internal movement should be smooth, continuous, and without force or stagnation.
Phase 2: The Connection — Passing Qi with a Slight Touch
This is where the internal meets the external. With a slight touch, you are not using mechanical force, but using your intention to extend your Qi field (氣場) into your partner.
1. Based on Biomechanics and Fascia Theory
Creating a Tensegrity Bridge: With a light touch, your fascial system is already in contact. By directing your intention "through" your arm, you are subtly adjusting your own myofascial tension. This creates a vibratory or tensional wave that is imperceptible to the conscious mind of your partner, but their subconscious proprioceptive system feels it instantly. You are "communicating" through the fascia.
The "Fascial Loop" with Partner: As we discussed in a previous question about creating a loop, you can use your intention to connect the point of touch (e.g., your hand) to your ground (足下, Zú Xià). Then, you extend that intention further: you imagine your ground connecting to their ground, creating a physical-energetic circuit. Their body, sensing this connection, may instinctively respond, allowing you to guide them with minimal effort. This is the biomechanical basis of "leading" without pushing.
2. Based on Qigong Theories
Projecting Qi (發氣, Fā Qì): This is a specific skill. It involves mentally directing the Qi stored in your Dantian up through your arm and out through the Lao Gong (勞宮) point.
Connecting with Outside Intention: This is the most advanced part. It's the principle of "空中取支點" (Finding a Pivot Point in the Air) you asked about earlier. You create a mental "anchor" or a point in space behind your partner.
How it works: You don't push at your partner. You place your intention beyond them (e.g., on the wall behind them, or even a distant mountain). Your Qi, following your intention, flows through your partner to that point, effectively "pinning" them to your will. You are using the external object as a fulcrum for your intention.
Creating the Qi Circuit (氣路循環, Qì Lù Xún Huán): The highest level is establishing a loop. Your Qi flows from your Dantian, out your hand, into your partner, through them, and then back into you through your other hand or your feet/ground. This creates a closed loop of intention and energy where the partner feels completely surrounded and controlled. The classics hint at this with phrases like "周身一家" (Zhōu Shēn Yī Jiā, body as one family) but extend that family to include the partner.
3. Based on Tai Chi Classics
"一羽不能加，蠅蟲不能落" (Yī Yǔ Bù Néng Jiā, Yíng Chóng Bù Néng Luò): "A feather cannot be added, a fly cannot alight." This describes the extreme sensitivity developed through Ting Jin (聽勁) . With a slight touch, you are so sensitive that you can feel the slightest intention in your partner. This is the "receiving" end of the Qi circuit.
"彼不動，己不動；彼微動，己先動" (Bǐ Bù Dòng, Jǐ Bù Dòng; Bǐ Wēi Dòng, Jǐ Xiān Dòng): "If the opponent does not move, I do not move; at the opponent's slightest move, I have already moved." When you have established a Qi circuit, this happens automatically. Their intention to move is felt instantly in your Qi field, and your response (guided by your intention to the point outside them) is simultaneous, appearing to happen before their physical move.
"蓄勁如張弓，發勁如放箭" (Xù Jìn Rú Zhāng Gōng, Fā Jìn Rú Fàng Jiàn): "Storing Jin is like drawing a bow; issuing Jin is like releasing an arrow." This is the perfect metaphor. Your intention, connected to a point outside the partner, is like drawing the bow. The release is not a push, but a sudden letting go of that intention, allowing the "arrow" of energy to fly.
Summary: The Step-by-Step Process
To move Qi and pass it to a partner with a light touch, following the principles above:
Internal Preparation: Achieve deep relaxation (鬆, Sōng) and proper alignment. Focus your intention (意, Yì) on your Dantian (丹田) .
Establish Internal Flow: Use your mind to guide Qi in a small internal circuit, like the Microcosmic Orbit (小周天, Xiǎo Zhōu Tiān) . Feel the Qi in your Lao Gong (勞宮) .
Connect with Light Touch: Gently make contact. Do not push. Use Ting Jin (聽勁) to feel your partner.
Extend Intention Outward: Place your intention on a point beyond your partner—a wall, a tree, or a distant object. This is the "fulcrum in the air."
Create the Circuit: Imagine your Qi flowing from your Dantian, through your arm, into your partner, and along your intended line to the external point, then returning to you through your ground or other hand. This creates the Qi route circle (氣路圓圈) .
"Draw the Bow": Maintain this energetic connection without physical force. The feeling is one of gentle, expansive connection.
"Release the Arrow": To affect your partner, simply release the intention holding the circuit closed, or shift your intention to a new point. The energy, like an arrow, has already been "drawn" to that point and will follow your thought.
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