In ancient times, there existed a kind of creature called Meng Ling, which looked like a human being. It was formed from the aura of heaven and earth and lived on the Dream Mountain all its life.
The Dream Mountain is between the fairy world and the human world. It is also made of spiritual energy. Therefore, the fairy world and the human world cannot see it, and they don't even know that the Dream Mountain exists in the world.
When dream spirits first take shape, they are not just called dream spirits. They need to go to the human world to experience and obtain dream cores before they can become real dream spirits.
Dream nuclei exist in human dreams. Everyone has countless dream nuclei in their dreams. After sleep, consciousness generates dream nuclei to form different dreams.
Dream spirits are proficient in illusions and can enter human dreams to generate dream nuclei. Therefore, dream spirits are also called dream builders.