Everything in the universe is a condensed state of qi, and our cultivation is to have a cultural realm. Gasification and reduction, return to the natural state of the universe. Men are also the condensation of qi. If he goes with the flow, he will be an ordinary person. If he violates it, he will be immortal. If he disobeys, his thoughts will return to infancy, and he will become an immortal and a Taoist. Laozi's quietness will be a baby, and if he returns to nature, it will be the realm of harmony between man and nature.