I'm looking for a novel that I once read, where the protagonist was reborn in the original world, and it was divided into nine heavens, and I remember that one of the heavens had something to do with

I'm looking for a novel that I once read, where the protagonist was reborn in the original world, and it was divided into nine heavens, and I remember that one of the heavens had something to do with Buddhism. This novel may be a fantasy or immortal novel, which may involve Buddhist concepts and beliefs. In Buddhism, the nine heavens are the Dolich Heaven, the Four Heavenly Kings, the Sumeru Heaven, the Dudu Heaven, the Harmonious Heaven, the Tathagata Heaven, the Brahma Heaven, the Demon Heaven, and the Asura Heaven, and these heavenly realms are considered to be sacred and in charge of different realms and powers.

In the novel, the protagonist may be reborn into some world of one of the nine heavens, which may be associated with Buddhism. He may need to learn, fight, explore and grow in this world in order to gain more power and ability, and eventually achieve a certain goal or reach a certain realm.

This novel may need further description and clarification to determine exactly which work it is, such as the protagonist's abilities, personality, goals, and so on. It can also be further located and confirmed by information such as the novel's cover, author, and publisher.