METAMORPHOSES, Ovid's poetical legends of mythical transformations, a large source of our knowledge of classic mythology
METANIRA, a mother, kind to Ceres seeking Proserpine
METEMPSYCHOSIS, transmigration of souls—rebirth of dying men and women in forms of animals or human beings
METIS, Prudence, a spouse of Jupiter
MEZENTIUS, a brave but cruel soldier, opposing Aeneas in Italy
MIDAS
MIDGARD, the middle world of the Norsemen
MIDGARD SERPENT, a sea monster, child of Loki
MILKY WAY, starred path across the sky, believed to be road to palace of the gods
MILO, a great athlete