The Dogon tells the legend of the Nommos, awful-looking beings who arrived in a vessel along with fire and thunder. After they arrived here - they put out a reservoir of water onto the Earth then dove into the water.
The Nommos were more fishlike than human, and had to live in water. They were saviors and spiritual guardians: “The Nommo divided his body among men to feed them; that is why it is also said that as the universe “had drunk of his body,” the Nommo also made men drink. He gave all his life principles to human beings.“
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