In ancient times, there were real people who raised heaven and earth, grasped yin and yang, absorbed essence, kept god independently, and had the same muscles, so they could live a long life in heaven and earth forever. This is the living method.

In the Middle Ages, there was supreme virtue and omnipotence, harmony between Yin and Yang, four seasons, death from vulgarity, concentration, marching between heaven and earth, extending audio-visual reach, benefiting his life and making the strong also. Also belongs to real people.

Secondly, there are saints, who are in harmony with nature. They are secular, have no anger, don't want to die, are naked, don't want to look at vulgarity, don't work hard outside, have no distractions inside, take pleasure as their service, take self-satisfaction as their work, keep in shape, and keep it in mind, which can also be hundreds.

Secondly, there are sages who govern heaven and earth, such as the sun and the moon, distinguish the stars, guard yin and yang, and contract for four seasons from ancient times, which can also prolong life for a very long time.