Hestia (hĕsˈtēə) [key], in Greek religion and mythology, goddess of the hearth; daughter of Kronos and Rhea. Both public and private worship of Hestia were widespread; she represented personal and communal security and happiness. An Olympian goddess, she was thought of as the kindest and mildest of the gods. She was of little mythological importance, appearing in only a few stories. The Romans identified her with Vesta.