Ye Lin's soul traveled through the world of immortality, but he didn't want to encounter the darkest era of immortality.
Nuwa, the supreme god of the human race and the mother of the ancestor, was severely wounded by the demon god and fell. When she was in danger, Nuwa transformed into all living things and scattered her Taoist platform across the world.
Pei Qingchang was lucky enough to receive a ray of "ancestral mother's energy" when he was young. Ye Lin's soul penetrated the body of Pei Qing whose soul was destroyed. By coincidence, he awakened the "demon refining pot" contained in the mother's energy. This pot was originally taken by Nuwa from the mending stone and the original stone mother, and was naturally fused over the years.
With the demon refining pot, Ye Lin used his left hand to absorb the maternal energy, and his right hand to destroy the outsiders in the domain, seizing the "Demon Grandmother Source" to conquer the demon clan and other worlds.