<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR><font face="Verdana, Arial" size="2">Originally posted by The Wandering Brit:
Thankyou very much for your posts, they help a lot.
Now, in an attempt to tie this back into the rest of the thread...Chee, we do an exercise for centering and rooting which involves the receiver assuming a full forward weighted bow stance and the pusher gradually pushing harder and harder into his arm (which is in ward off position).
The receiver takes as much force as possible in a relaxed manner, allowing his arms to come closer into his body as and when he needs to. If the force builds up to be too much to bear without tensing up or leaning, the receiver takes it all into the back leg and withdraws the front leg, to then re-root, so the opponent is over extended and pushing over a longer distance.
If however the receiver can take all the pressure in the correct way, remaining song, it starts to go back into the pusher...certainly when I have pushed my teacher he has stood there beningly smiling whilst I am pushing with every ounce of my force and body weight, to the point where I am soaked in sweat and shaking, and my force is just coming straight back into me. Is this an exercise you are familiar with, and does it tie into 'old ox strength' somehow?</B></font><HR></BLOCKQUOTE>
Bouncing back Jin is different than `old ox', the exercise you mentioned is sometime called `Chieh Jin' or intercepting Jin. `Old ox' concentrate on developing Peng Jin which is a force used to protect and defend so that internal force will not be broken and penetrated by enermy. Chieh Jin however, like you mentioned, is used as an offensive force though not exactly offensive as in attacking. It requires taiji player to be very `song' to enable force to travel thru and from the body. It requires very good `tung jin' (understand energy)to enable taiji player to decipher the `head' `body' and `tail' of opponents force. It requires strong yi (mind intent) to direct chi and jin.
In Chieh Jin, you adhere to the coming force, absorb the `head' of the force which is the strongest and then bounce back the `body' of the force to your opponent and add-on to the `tail'. All these are done in a smooth manner and refine movements control by strong yi. Cheng Man ching said Chieh Jin is perhaps one of the higher skills of taiji. I did tried teaching some of my more advanced students this skill but then I stopped because their skills are not up to the level where they are ready yet. One is advised to try chieh jin only after one is very skilled in `fang song', with strong peng jin and rooting.
Hope this helps.