The Egyptian Book of Dead

The name of one nest is 'Millions of years,' and 'Great Green [Sea]' is the name of the other, that is to say 'Lake of Natron' and 'Lake of Salt.' "Others, however, say the name of the one is 'Guide of Millions of Years,' and that 'Great Green Lake' is name of the other. Yet others say that 'Begetter of Millions of Years' is the name of one, and 'Great Green Lake' is the name of the other. Now, as concerning the Great God who dwelleth therein, it is Ra himself. "I pass over the way, I know the head of the Island of Maati."