YouTube link he watches at the bottom of the page
http://www.wretch.cc/blog/TwoFishesTCC/22773985
Or
http://www.youtube.com/watch?v=mdVLg8kGOCg
http://www.youtube.com/watch?v=t0jepJ8aLJM
Or to be just narrow Down to very a simply even
How do I do the recieve and issue ? Why do I choose to use body to recieve and issue without using big stance instead of limbs , why I use the wall as opposition?, if it is not to show how the explicit look when internal dynamic in operation with the wall as support of the opposition.
The internal art guy in the above link know what it is So he sees it, but most people never see that type of things, so they missed it.
http://www.youtube.com/watch?v=aAkvhj06Fw4
It is not about I am good at it, it fact I am not, but, internal dealing with force change, that I still know the basic and can demo it to let those who knows it to identify it.