"To get to the after-life, people needed to follow the law but were not assured entry. They also needed to be initiated into the “Heka” - the mystical knowledge of Thoth.

Thoth is said to have invented writing so that he could preserve this sacred knowledge in a library. Ancient Egyptian priests initiated the faithful using texts inspired by Thoth's library. They imparted some knowledge but total knowledge was gained only by passing through the fifth Duat, a division of the underworld, also known as ROSTAU. But ROSTAU was also an early name for Giza, the location of the pyramids, so ROSTAU had a physical as well as a spiritual reality."