The Yin and Yang Star of the Celestial Sphere

All things can be divided into yin and yang, ranging from the sky and the earth to as small as a leaf. The sky is yang and the earth is yin. The yin and yang transform all things into beautiful mountains and rivers, birds and animals. Chen An from the earth accidentally traveled to the celestial sphere, where there are thousands of races. In the east, there is King Wen writing a pen to decide life and death, and in the west there is King Wu holding an ax and fighting on the battlefield. In order to return to the earth, he sings all the way and fights for survival. Is the earth complete in your eyes? In my eyes, no, it is only half, and the other half is the so-called celestial sphere.