Internal skill

Internal skill is subtle.
It takes decades of time, understanding and training to cultivate: this is why so many people go astray.

The visible outward signs are small. Most of the work takes place within the body. The movements are smaller, less obvious.

As the student's skill improves, the physicality of the tai chi chuan diminishes.
The frame serves to supplement the mind.
A more subtle physical expression is now possible.

Partner drills and form application teach the student how to minimalise their movements.
Balance, timing, structure, softness and mind combine to create the desired outcome: a twitch instead of an arc.