Celestial Spirit Grades: 1 Star, 2 Star... 7 Star.

Celestial Cultivation Levels:

Cestial Warriors

Celestial General

Earthly Celestials

Sky Celestials

Heavenly Celestials

Half Step Immortal

Immortal Celestial

Saint Celestial

Supreme Celestial

Celestial God

Mythical Books: Seven in the Universe, all with a Heaven's Chosen

1) Book of Death

2) Book of Destiny

3) Book of Truth

4) Book of Rebirth

5) Book of Curse

6) Book of Depravity

7) Book of Luck

Additional Books: Two, both with Villains

1) Book of Devouring

2) *******

Lastly, the Book that wasn't supposed to exist... The Book of Desires, currently in possession of main character.