A little debate here, many interesting posts. Thanks to everyone. I think this discussion is valuable first of all because of the attempt to understand the others' approaches to the practice
In my opinion which is based on what I read and have been taught taiji quan has three levels – Earth, Man, and Heaven. I am not speaking just about Yang style but in general. One thing comes to mind. Hao Weizhen wrote an excellent essay about the three stages of one's development/attainment in the form practice and corresponding feelings/mental associations relating to these levels – 1) moving in water, 2) ascending in water, and 3) walking on the thin ice surface where water is below (sorry for the rough and very simplified translation). This doesn't necessary suits to all taiji styles, but gives a very good example of how master views the different stages according to his personal experience and personal perception. That is my point.
I am not stating that lingkong jin is possible. I even don't know what it actually means. Yes, Shiming demonstrated some unusual skill, but from what I seen he did that either with a touch or almost with a touch and only with his students. One of his students occasionally gives seminars in Russia, probably I'll try to get some more explanations on the matter.
[This message has been edited by Yuri Snisarenko (edited 10-31-2005).]