Waaqa is the supreme being of the Oromo of Ethiopia and northern Kenya and the focus of their indigenous religion, Waaqeffanna. The single word names both the visible vault of the sky and God himself, reflecting an ancient Cushitic conception in which the heavens and the divine are one. Frequently invoked as Waaqa Gurraacha, 'the black Waaqa', a colour associated with the fertile rain-clouds, and as Waaqa Tokkichaa, 'the One Waaqa', he is understood as a single, non-anthropomorphic creator who made the world and continues to sustain it. From Waaqa all individuated beings derive their essence in the form of ayyaana, and he is the guarantor of safuu, the moral order governing right relations among the creator, humanity and nature. His cult was historically mediated by the hereditary ritual experts known as qaalluu, and the women's divinities Atete and Maaram are spoken of as among his creations.