Ésceheman, 'Our Grandmother', is the female earth spirit of the Tsistsistas (Cheyenne), dwelling in the deep earth as guardian of the game animals and of the earth's generative power. Karl Schlesier's reconstruction of the Massaum, the great world-renewal ceremony, places her at the heart of Cheyenne sacred cosmology alongside Maheo above; Peter Powell's ethnohistory records the continuing veneration of Grandmother Earth in Northern Cheyenne ritual. In the Massaum tradition she and the thunder spirit Nonoma are the parents of Ehyophstah, the Yellow-Haired Woman.