Excerpt from Ceng Shiqiang's lecture on Yijing 08.

1, Fuxi painted the sky, which is what Confucius said, namely yin and yang. Eight diagrams represent eight natural phenomena in nature, namely heaven and earth, fire, thunder, wind and mountains. China people know the truth about the change of the universe best. The two fastest changing hours in a day are 1 1 in the morning and 1 in the evening, that is, at noon. You need a rest at this time, just 20-30 minutes. Don't run at noon. This is the most abundant time of the day, so you need to maintain it. This is Shaoyang. At night 1 till the early morning, the hematopoietic function of the whole body is the strongest. You need to rest. Don't stay up late. This is Lao Yin.

2. The Eight Diagrams of the Book of Changes is a symbol system, which later evolved into "Gankunkan is isolated from earthquakes";

Dry is vigorous, Kun is supple, the sky is dry and the earth is Kun, so China culture often represents the world with dry Kun;

Water is a land without soil, and ridges are a land without soil;

Fire is the sun, and the sun rises from the east and leaves the east every day, so fire is separate. The fire must be attached to something else, and it will not burn as soon as it leaves. Modern fire fighting is actually a departure from divination-isolating the fire;

The mountain is the root, that is, enough is enough, and everything can't be too extravagant;

Thunder is an earthquake, because the whole earth vibrates when it thunders;

The wind is awkward, the wind is pervasive, and it blows neatly;

Ze is communication. People feel beautiful scenery beside rivers, lakes and seas, so they are happy.