Cosmology believes that there is no starting point or end point in heaven and earth.

Lao Tzu believed that before the heaven and earth were formed, there was Tao first. Tao gave birth to one, one gave birth to two, two gave birth to three, and three gave birth to all things. Before the heaven and earth were formed, there was only infinite space, one of which was dark, nothing was generated. Only the essence was filled with energy, and the spirit was restored one by one. This spirit, the spirit, that is, Tao, is the different functions and names of Tao. Later, it formed the heaven and earth and all things.

And the underground world (not the underworld): Taoism divides the earth into nine layers, called Nine Layers. It is the first colored land, the second colored land, the third colored land, the fourth colored land, the fifth colored land, the fifth colored land, the sixth colored land, the Qord iron land, the seventh water-made land, the eighth windy land, and the ninth colorless land of the cave abyss.

In addition, it is believed in Wuji, Taiji, Yin and Yang Wuxing Bagua;

Wuji gives birth to Tai Chi, and Tai Chi gives birth to two yin and two yin and four yin and four yin and eight trigrams, and then turn to the nine palaces.
Chapter completed!