The space where human beings live is called the dead, and the space where the soul is after human death is called the underworld. In China, there are records of the underworld in a large number of ancient myths. Thousands of years' research on China culture has pointed out that everything has yin and yang, which means that in all things generated, there are yin and yang in shape and yin and yang in god, which is very detailed and profound. This is just a point in the theory of yin and yang.
Because in our traditional culture, there is also a saying like "the vine is clever and the tree is strange". Everything has animism, and any animist may evolve into an emotional species with a high IQ like human beings. Although this phenomenon evolved from the human species, humble as a stone, trees may have a chance to become a reality, and it is not limited to what we can see and touch. The six doctrines are always included in the theory of Yin and Yang.