In Greek mythology, Demeter (Δήμητρα) is the Olympian goddess of the harvest, fertility, grains, and the earth. She is the divine patron of farming, growth, abundance, and nature's nourishment. Her Roman counterpart is Ceres. Demeter's most famous myth involves her daughter Persephone's abduction by Hades, which explains the seasonal cycle: Demeter's grief brings winter; her joy at Persephone's return brings spring and summer.