C514 Ascending Pond
He had heard of the Immortal Underworld before. Just like how humans now lived in the Underworld, Immortals would also die, and after their Dao disappears, they would come to the Immortal Underworld to reincarnate. However, they would still possess the body of Immortals after they reincarnate.
Regardless of which world it was, this was the only way to maintain the balance of resources and energy