What do you mean, open the sky?

The celestial disk refers to the influence of celestial movement on the earth and people. The nine planets mentioned here are not the actual constellations observed in modern astronomy, but the names of the running energies of nine celestial bodies in nine directions on the earth and corresponding to the Eight Diagrams, which were discovered by the ancients through experience and intuition in the concept of heaven-man induction.

Easy to understand is called fortune telling. Heaven refers to nine planets, namely Tian Peng, Tian Rui, Tian Chong, Tianfu, Qin Tian, Tianxin, Tianzhu, Rentian and Tianying. The nine planets represent the weather in Qimen, that is, the influence of celestial movement on the earth and human beings.