‘The word Peng’ (pron. ‘pung’ as in ‘sprung’) is used in a general way to explain the feeling of expansion/protection of the body as though you are inside a large balloon; the front and back, left and right, and top and bottom are all working together equally, so that, for example, if you were to push forwards, you would feel an equal expansion backwards. The operative word here is feel, because you naturally wouldn’t be able to ‘push’ your back in the same way behind you!
However, the word ‘Peng’ is also used to describe one of the 13 Principles, occurring in every style of tai chi in one way or another. In the Yang 24-Step form it appears at Forms 7 & 8, following the 4th Repulse Monkey (Step Back and Push); at this stage in the set of movements – assuming you began the form facing 12.00, you are facing 9.00.
In Form 7, the movement consists of the left arm simultaneously sinking (lowering) and drawing in (towards the body), before lifting up the centreline of the body to project forwards again at approximately shoulder height.
In the previous form, i.e. Form 6 (Repulse Monkey), each of the 4 backward stepping movements is initiated by turning the body to right or left; so it’s almost automatic for beginners (and sometimes for more advanced practitioners also) to turn the body once again. However, it shouldn’t turn, or at least it should only be a very small amount.
To stop the urge to turn the body to the right at this point, focus on the role of the right hand. Instead of allowing it to wander aimlessly out in the 1 o’clock direction (assuming you began the Form facing 12 o’clock), give it the intention of reaching towards 9 o’clock as though to grasp your opponent’s clothing, or shoulder, or even the back of his head. The right arm will still lift up into something resembling a ‘hold ball’ shape (although in reality you’ll never arrive at this shape), but the right hand’s intention will stop the body from turning to the right because the hand is leading and is reaching forward. All of a sudden the body will feel better balanced in this movement, the left and right sides of the body will coordinate better (see the previous blog on ‘balance’), and the right arm will no longer feel so ‘useless’, or functionless.