Ereshkigal
In Mesopotamian mythology, Ereshkigal is the queen of the underworld, representing the dark aspects of the self, transformation through facing one's shadows, and the inevitability of death and rebirth. She embodies the cycle of life, death, and regeneration.
Themes: transformation, darkness, rebirth, cycle, regeneration
More in: 'Descent to the Goddess' by Sylvia Brinton Perera; Various Mesopotamian texts.