People speak of expressing fa jing, but which jing do they have in mind?
Every action you take is directed by intention.

Tai chi and baguazhang form express a wide variety of chin na and shuai jiao applications, along with very specific jing.
You cannot train them whilst chattering away in your own head.
Your mind must be on what you are doing.

Do not have a fixed application in mind for each movement.
Instead, feel the flow, the principles and energy employed, and recognise how these can be used constructively and effectively.