"Our founder has handed down a truly marvelous art; hard, soft, full and empty change with the situation. Diligently seek the truth in the teachings and deeply examine the internal, external, gross and fine. When the opponent approaches I draw him in; when he retreats I pursue him. If your emptiness does not conceal fullness, it is not effective emptiness. If your fullness does not contain emptiness, it is foolish risk taking. Within emptiness, adapt to changing situations; seek perfection in the principle of roundness. When the opponent uses "press", neutralize him with "roll-back". When he closes with you, use "split". "Pull-down" and "push" alternate with each other, and offense and defense all have their principles. The whole body is as one unbroken qì, as unified as a tai chi sphere. I can draw the opponent in from every point; my entire body is hands. However, if offense and defense are not clearly distinguished, full and empty will have no basis. It is like the full moon of the seventh month, whose light illuminates the whole world. When your training has reached the level of emptiness, then the distinction of offense and defense no longer exists."