Vacuity, tranquillity, mellowness, quietness and taking no action characterise things of the universe at peace and represent the ultimate Tao and virtue. Therefore abide in them.
Lao Tan said, “I was letting my mind wander in the beginning of things.”
“What does this mean?” asked Confucius. Lao Tan said, “It means to attain Perfect Beauty and wander in Perfect Happiness. He who attains Perfect Beauty and wanders in Perfect Happiness may be called the Perfect Man.”
You may control a mad elephant; You may shut the mouth of the bear and the tiger; Ride the lion and play with the cobra; By alchemy you may earn your livelihood; You may wander through the universe incognito; Make vassals of the gods; be ever youthful; You may walk on water and live in fire; But control of the mind is better and more difficult.

