
Zuqiao (a region between the heart and the navel) is also called xuanmu. According to Dao De Jing, "the gate of xuanmu is the root of heaven and earth. " Zhang Ziyang said, "The cultivation of the golden elixir depends entirely on xuanrnu."

Concentrating on zuqiao means remaining in a state of wuji and nourishing the original qi. Dao De Jing also states: "Too many words lead to exhaustion. It is better to concentrate attention on practice. " Reg-ulate mental activity in zuqiao, without too much concentration or neglect. Maintain the body like a plant supports itself with the fir, m roots.
Deep in concentration, the mind remains aware but does not exert it-self. When the mind is still, enlightenment will come naturally; when the mind and body have forgotten each other, shen will assemble with the as-sistance of qi, and the force of life will combine itself with shen. With that the whole body will enter a state of harmony with little conscious ef-fort.