A man is born gentle and weak. At death, he is hard and stiff. Green plants are tender and filled with sap. At death, they are withered and dry. Therefore, the stiff and unbending is the disciple of death, and the gentle and yielding is the disciple of life.
LaoziBecause every portion of the body, mind, and spirit yearns for the integration of yin and yang, angelic intercourse is led by the spirit rather than the sexual organs. . . . Where ordinary intercourse unites sex organs with sex organs, angelic cultivation unites spirit with spirit, mind with mind, and every cell of one body with every cell of the other body.
Laozi