The pure man of old knew neither to love life nor to hate death. He did not rejoice in birth, nor did he resist death. Without any concern he came and without any concern he went, that was all. He did not forget his beginning nor seek his end. He accepted [his body] with pleasure, and forgetting [life and death], he returned to [the natural state]. He did not violate Tao with his mind, and he did not assist Nature with man. This is what is meant by a pure man.

(Tchuang Tzu)