Egyptian Magic in Egyptian Magic by Florence Farr.

“We find in the Ritual of the Dead elaborate formulas for the assistance of the KHOU of the deceased. The Justified KHOU was obliged to pass many tests; it had to cultivate the gardens of heaven, destroy monsters, take on certain obligatory forms, escort the Gods in their Heaven-traversing ships, take part in the ceaseless struggle between the two contending forces, cross burning and desolate zones, suffer in the regions of hunger, thirst, and terror, submit to proofs, reply to questions, and pass the armed and hideous Deity who guarded the Portals of Wisdom.” [via]