Like other
Great Underworld Books, the Book of Caverns tells the journey of
Ra as he travels through the 12 hours of the night in the Underworld. The caverns of the underworld act as both a place of punishment to souls who displeased Ra in life, and a sanctuary to the righteous souls.
First division This division begins the Book of Caverns with Ra's descent into the Underworld. In the upper register of this section, Ra convinces the serpentine doorkeepers of the underworld to let him through the doors and into the underworld. Also in the upper register, the corpse of Osiris is displayed in multiple pieces, emphasizing at this point in the book how Ra and Osiris are separate. Additionally, the
Ennead guardian deities are depicted in this section, accompanying Ra to the Western Necropolis.
Third division This section contains thirteen scenes where Ra enters into the underworld after being let through the doors by the serpentine doorkeepers. This is the first division when Osiris and Ra symbolically start to unify. This unification is depicting through Ra's sun disk being paired on top of the illustration of Osiris. This unification begins around the third hour of the night in Ra's journey, and continues to be represented throughout the rest of the book, until Ra's rebirth.
Fourth division The nine scenes in this section depict Ra along with several other gods, including
Isis,
Nephtys,
Anubis, and
Horus. Divisions three and four especially focus on the punishment of the damned: deceased souls who displeased the gods.
Sixth division File:Extracts from the Book of Caverns (9174910524).jpg|thumb|From the Book of Caverns Division 6, depicting Ra's rebirth on Papyrus. Displayed in the Western Australian Museum in Perth, Australia. The last section before Ra's rebirth, division six depicts Ra beginning the process of rebirth. It highlights scarab beetles and a sun disk emerging from mounds in the ground, representing Ra and Osiris. Further scenes show a mummified deity, as Osiris is usually shown, with a rams-head, as Ra is typically depicted. This demonstrates the merging of Osiris and Ra in this scene, shortly before Ra's final rebirth.
Final rebirth tableau This section showcases the finale of Ra's rebirth, as he emerges in the morning. Across this tableau, Ra is depicted in his various forms, as a child, scarab beetle, and ram-headed deity. ==Translation==