(Sanskrit: “The Boundless”), in the Vedic phase of Hindu mythology, the personification of the infinite, and mother of a group of celestial deities, the Ādityas. As a primeval goddess, she is referred to as the mother of many gods, including Vishnu in his dwarf incarnation and, in a later reappearance, Krishna. She supports the sky, sustains all existence, and nourishes the earth. It is in the latter sense that she is often represented as a cow.

Her sons, the Ādityas, are of uncertain number and identity. Varuṇa is their chief, and they are called like him “Upholders of ṛta (‘divine order').” One hymn names them as Varuṇa, Mitra, Aryaman, Dakṣa, Bhaga, and Amśa. Sometimes Dakṣa is excluded and Indra, Savitṛ (the sun), and Dhātṛ are added. Occasionally the term is extended to include all the gods. In later periods their number is increased to 12, and they are linked to the 12 solar months of the year. Āditya in the singular form is a name of the sun.