When our alignment is correct our structure is strong and has capability to issue power easily. The same lines of alignment are also important in enabling us to defend and attack successfully when playing the game of push hands.
The more precise our understanding of alignment the easier it is for us to open up our training partner’s doors even when he thinks that he is in a strong defensive position. Knowing how to manipulate the lines of alignment will allow us to manifest a response when it appears we are trapped by our partner’s attacking technique.
This is why sometimes when playing push hands don’t try to win. Instead, just try to go with exploring the possibilities. Probe rather than execute fully. In this way you will understand how one technique can flow to the next and the next and the next. This is how we learn to use the 10 movements of our 13-movement form which I explained in TaijiKinesis Vol 2.