[this book is a fantasy series. This does not contain anything that represents reality and if they are the same, it was just a coincidence, so don't take it to heart, and yeah, please enjoy reading.]
Cultivation Realm
1) Body Awakening Realm
2) Body Strengthening Realm
3) Core Formation Realm
4) True Spirit Realm
5) Spirit Lord Realm
6) Spirit King Realm
7) Spirit Emperor Realm
8) Spirit Overlord Realm
9) Spirit Saint Realm
World setting - There are basically three planes which are as follows:
1) Lower plane
2) Mortal Plane
3) Heavenly Plane
The division of the planes will be explained as the story progresses.
(have fun reading)