Yang Cheng-fu�s Ten Classical Principles
1. The head should be upright so the shen (spirit) can reach the head top.|
2. Sink the chest and pluck up the back.
3. Sung (relax) the waist.
4. Differentiate insubstantial and substantial.
5. Sink the shoulders and elbows.
6. Use mind and not force.
7. Upper and lower mutually follow.
8. Inside and outside coordinate.
9. It is mutually joined and unbroken.
10. Seek stillness in movement.