Of all things in the world, only spirits are not in the four realms. Some of them are ancient objects, some are heavenly spirits and earthly treasures, or obsessions or elements.
The spiritual form that is not contaminated by cause and effect can choose to be a human or practice directly; the former has a chance of awakening its memory during its lifetime if it loses its cultivation, while the latter is remembered and must either find a powerful master or be caught.
The world is divided into five realms: humans, demons, monsters, ghosts, and immortals. Since the immortals left, the four realms have been in chaos...
(Actually, this is a happy article, a sweet article that mainly accepts it.)
(This article is unreasonable and nonsense. Don't take it seriously. If you have any comments, I will definitely read, reply, and modify them carefully. I love you all.)