Structural force and indirect power are two different things, and at the same time two things that are not in one [dimension].
Structural force is a kind of force, which belongs to static force. The other is dynamic force. In a general sense, we can say that the forces in humans are dynamic forces, and the forces in machines are static forces. In Practical Method, we say “train yourself into a machine”, which actually means “transform dynamic force into static force”.
Regarding indirect power, we are not talking about force here, we are talking about the concept of force, therefore indirect power is not force, but a concept related to force. There are two kinds of things in this layer: direct power and indirect power. Chen Style Taijiquan Practical Method trains and uses indirect power, not direct power.
From a simple point of view, direct power can create conflict, and there are sizes. Indirect power does not cause conflict, and there is no distinction between big and small. This feature makes the indirect power closer to internal martial arts (we don’t define what internal martial arts is here).
Originally posted in Chinese by Master Chen Zhonghua. Translation-Yuxin Liu