159).

Where the walls of the pyramid of Unas give the prayers recited over the mummy to open his mouth, to restore the use of his limbs, to clothe, to perfume, to feed him, the walls of Seti's catacomb contain representations of the actual mummy, of the Ka statues which are the supports of his Double, and of the priests who open their mouths, who clothe them, perfume them, and offer them the various meats and drinks of the funeral feast.

The ceilings of the pyramid chambers were sprinkled over with stars to resemble the face of the heavens; but there was nothing to instruct the Soul as to the names of those heavenly bodies.
On the ceilings of some of the Theban catacombs, we not only find the constellations depicted, each with its personified image, but astronomical tables giving the aspect of the heavens fortnight by fortnight throughout the months of the Egyptian year, so that the Soul had but to lift its eyes and see in what part of the firmament its course lay night after night.
Taken as a series, these tableaux form an illustrated narrative of the travels of the sun and the Soul throughout the twenty-four hours of the day and night.

Each hour is represented, as also the domain of each hour with its circumscribed boundary, the door of which is guarded by a huge serpent.
These serpents have their various names, as "Fire-Face," "Flaming Eye," "Evil Eye," etc.

The fate of Souls was decided in the third hour of the day.