John Kells had a YIELD traffic sign in the basement room of his tai chi centre in Upper Wimpole Street, London.
It served as a reminder to all students that this was a cardinal principle. To yield is to accept, not evade. To yield is not just a physical thing, but comes from the heart. Yielding leads to transformation.
A melting acceptance so there is no ego to stand as an obstacle. No intellectual judgement, no clever words.
Stop pretending, stop tricking ourselves. The minute you think you can yield you will be found out.
The crunch comes when under pressure. John at one point used to practise with his partner attacking with knives. I didn't do this but I have found the Sun style Taiji 2 person Sword form to be useful in this regard.