Again, as for Liejin, If we've exprieced to hit the opponent by using the White Crane Spreading Wing, we know the Jin before knowing it, we are still trying the Jin by pushing each other--so called "Listen".
Once the attacking from the opponent,all we do is a turn ( the opponent lies in a imbalanced state.) and the right hand up accompiney by the spirit up through the spine (touching the opponent,who is rejecting out like an arrow because of our whole-one Qi).
If we've got this expriece, we know the Liejin,
It takes a hard work both in body and mind,and then we can go from "Listen" to "know-how to do it ".