Wudang Taiji focuses on the fullness of internal energy, breath and spirit. The eight criteria that Wudang Taiji stresses when playing are: lightness, easiness, roundness, evenness, flexibility, changeableness, steadiness and precision. The motto for practice is: be relaxed, complete and prompt. The intent continues, even when the force goes out.
The breath will still go through the body when your intent is complete.
The principles peculiar to Wudang Taiji incorporate and reflect the practice of the Yin Yang theory. Here, we are to be hard and strong on the inside, round and smooth on the outside. Moves are made as a reaction to your opponent. In Taiji, your opponent is considered to be your shadow, hence the term shadow boxing. Thus your moves are against yourself, striking and deflecting in response to your shadow. Move like the waves of the Yangtze River flowing to the ocean, one after another, never stopping. Distribute energy when moving, but collect it when stopping. The energy should neither be overdone nor underplayed.
Move in coordination with your shadow’s actions: stretch as he bends, contract as he lengthens, lower as he raises. Meet your opponent with yielding, sticking, linking and following. Yield: be soft as he is hard. Stick: step back as he attacks forward. Link: quicken if he is quickening. Follow: slow down if he is slowing.