As long as a person wakes up, "Yang is the purpose", Wei Qi will start a day tour from the inner corner of his eyes, then "different from sharp eyes", that is, the outer corner of his eyes, and then open his eyes. The inner canthus is called the inner canthus and the outer canthus is called the pointed canthus. Eyes are sharp and wide, because this is an open place and the inner canthus is small, because this is a closed place.

"I am angry when I open my eyes." As long as you open your eyes, you will be furious. That is to say, your eyes don't open and your head doesn't turn. In the evening, Wei Qi "went out of the medial malleolus, went down to the point of Yin, and reunited with his eyes", that is, he closed his eyes again for a week. It means that it is a cycle from opening your eyes in the morning to closing your eyes at night. This blood circulation goes back and forth 25 times. Wei Qi circulates on the body surface 25 times during the day, and stomach qi enters the yin 25 times at night. Therefore, if you don't wake up in the morning, it will restrain Wei Qi from wandering in the sun and staying awake in the dark, thus making Wei Qi unable to enter the Yin. In the long run, qi and blood will be chaotic, and qi and blood chaos will cause physical and mental problems, that is, illness will form sleep disorders, which is also the meaning of the body and the sky.

Overwork and anxiety during the day hurt Yang; If you stay up late, you will hurt your yin. "The machine is in the eyes", the organ that protects qi from yang to yin lies in the opening and closing of eyes, opening eyes, activating yang, closing eyes, activating yin and opening eyes, and qi and blood are on the head, so there is no so-called reassurance; As soon as you close your eyes, everything is news. Restrain yourself, so the first way to keep fit is to close your eyes frequently.