The ancient people's exploration of everything in the universe was manifested in astronomical exploration, and its research angle was quite different from this. The ancients believed that the stars in the sky correspond to people and things on the earth, and human society changes with the change of the sky. According to this sense of heaven and man, people can predict the fortune of the world through astronomical observation.

I ching? "Xunzhuan" said: "Observe astronomy to observe time changes." The Romance of the Three Kingdoms is particularly rich in descriptions of astrology. For example, the deaths of Liu Biao, Cao Cao, Guan Yunchang, Zhang Fei, Zhuge Liang, Liu Bei and others have astronomical phenomena; Major decisions, such as Liu Bei's claim to the throne, the alliance between Shu and Wu, Zhuge Liang's setting up an altar to burn Chibi with the east wind, and Shu's northern expedition to the Central Plains, are almost all related to astronomical phenomena.

The ancients divided the whole day into 28 nights. Jin Shu? Tian said: "In man, it is three, in heaven, it is three." The Romance of the Three Kingdoms also mentioned the "three stars" observed by Zhuge Liang in the core monument of life. Three walls and twenty-eight lodgings have formed a huge and unique star official system in China. So you can use astrology all day. These are recorded in ancient books.

There is evidence related to the wind, such as Hanshu? "There is wind and rain in the moon, and there is cold and warm in the day", that is, when the moon moves to some stars, it will wind up. "History? Hong Fan said: "There is a good wind in the dustpan", that is, when the moon runs into the dustpan, it will raise dust and blow the wind. Sun Tzu's art of war The article "Fire Attack" also said: "The moon is on the basket, on the wall, on the wing, on the raft, and those who stay here for four nights will also have a windy day. "