Apsu

Apsu is a concept from ancient Mesopotamian mythology, representing the primeval freshwater ocean that existed before the world was formed. Think of it as a vast, endless, underground body of fresh water, symbolizing chaos and the source from which the gods and the world emerged. In myth, it is often paired with Tiamat, a saltwater goddess, collectively embodying the world's primal waters. Apsu's role emphasizes the ancient belief in a watery chaos from which order and life eventually arise through divine creation.