Movement and Action
Movement: move that does not cause your opponent to feel the impact.
Action: movement that causes the opponent to feel the impact.
Overall method should be: movement to get in (squeeze) and then action (one of the eight techniques).
All moves in taiji are repeatations of this: movement, action, movement, action, ...
When you move, don't push; when you push, don't move.
Source: https://practicalmethod.com/?p=6812