The Forbidden Fountain of Oz food, which occurs most famously in the "forbidden fruit" of the Tree of Knowledge of Good and Evil in the Book of Genesis, but in other contexts too. The idea of water that purges the drinker's memory is also ancient. In Greek mythology it occurs as the river Lethe: the souls of the dead lose their memories of their earthly lives by drinking its water. The same idea can also be found in Eastern and other literatures, as in the "Well of the Waters of Forgetfulness" and other guises. "The 'Drink of Forgetfulness' is found in Greek, Hindu, Norse, and
Greek underworld name. Not much is known about her, but she is an ally of Zeus and lives in the underworld. Eurynomos is one of the daemons of the underworld, who eats off all the flesh of the corpses, leaving only their bones. In the Greek underworld, the souls of the dead still existed but they are insubstantial and they flitted around the underworld with no sense of purpose. The dead within the Homeric underworld lack "menos", or strength, and therefore they cannot influence those on earth. They also lack "phrenes", or wit, and are heedless of what goes on around them