Every technique in this system is governed by three principles that operate simultaneously: Yi (意, intention), Qi (氣, vital energy), and Li (力, structural power). Understanding how these three interact is the key to understanding why the training is structured the way it is.
Yi — Intention
Yi is the mind leading the body. In practical terms, this means that the intention to move must precede the movement itself. A technique executed without clear intention is a shape without content — it may look correct but it will not function.
The development of Yi is why slow practice is emphasized in the early volumes. When you practice slowly, you have time to form a clear intention before each movement. Over time, this habit of intentional movement becomes automatic, and the technique begins to carry the quality that makes it effective.
Qi — Vital Energy
Qi is the most misunderstood concept in Chinese martial arts, largely because it has been romanticized into something mystical. In the context of this system, Qi refers to the flow of energy through the body that results from correct structural alignment and relaxed, connected movement.
When your structure is correct and your movement is relaxed, energy flows through the body in a way that amplifies the effect of your technique. When your structure is compromised or your movement is tense, that flow is interrupted. This is not mysticism — it is mechanics.
Li — Structural Power
Li is the power that results from correct structure. It is not muscular force — it is the power generated by the alignment of the body as a connected unit. A technique with correct Li uses the weight and structure of the entire body, not just the strength of the arm or leg executing the movement.
The conditioning work in this system is specifically designed to develop Li. The Iron Thread Qigong, the bridge conditioning drills, the stance training — all of it is building the structural foundation from which Li emerges.
How They Work Together
Yi leads Qi. Qi manifests as Li. This is the sequence. The intention directs the energy, and the energy expresses itself as structural power. A technique that has all three operating correctly is qualitatively different from a technique that has only one or two.
This is why the curriculum is structured as it is. The early volumes develop Yi through slow, intentional practice. The middle volumes develop Qi through conditioning and connected movement. The advanced volumes develop Li through the integration of all three.
— Sifu Chris Gaus