How did China's ancient traditional ideas know about cosmosymbolism?

From the purple walls in the sky to the Forbidden City in the capital, it is a masterpiece of cosmic symbolism. In the traditional cultural concept of ancient China, the stars in the sky dominated the fate of people in the world, and the sky also formed a hierarchical kingdom. The arched area where Polaris and Big Dipper are located is the center surrounded by stars in the celestial sphere.