How do ancient documents explain the stars?

Astronomy is an ancient prediction, which is specially used to predict major events. To tell the truth, I prefer to call it astrology rather than astronomy. Because it doesn't have much pioneering spirit in astronomy, it is entirely an observation of existing phenomena.

Compared with physiognomy, astronomy looks at the world from a macro perspective, while physiognomy predicts individual changes and looks at problems from a micro perspective. Ancient astronomy, like those trivial things that physiognomy pays attention to, is dismissive and powerless. The ancients believed in the interaction between heaven and man (one of the scientific foundations of the interaction between heaven and man is fractal, so you can learn about it if you are interested), and thought that the changes of heaven and earth would reflect the changes of the world, so they wanted to predict major events in advance through astronomy. Ancient astronomy in China existed for this purpose.

The specific operation is not difficult. The ancients mapped every county and every region to different stars in the sky, giving different kinds of stars certain meanings, so that we can predict what will happen through the changes and interactions between different stars. The job of star watchers is to observe some fixed features of stars, such as position changes, brightness changes, falling stars, etc., and record them, and give some explanations in systematic language. For example, the appearance of a star representing war in a certain star field means that there should be fighting in the corresponding county. If the light of the star symbolizing the minister becomes dim, it means that an important North Korean official is going to die. In addition, there are stars symbolizing drought, stars symbolizing locust plague, and so on. Many times, stargazing plays an important role, that is, it gives a reasonable explanation for the policy mistakes of emperors and officials, thus shirking the responsibilities of emperors and officials.