also Mahāprajñāpāramitā-sūtra, Skt., lit., “[Great] Sūtra of the Wisdom That Reaches the Other Shore [i.e., that is transcendental, or liberating]”; term for a series of about forty Mahāyāna sūtras, gathered together under this name because they all deal with the realization of prajñā. They represent a part of the Vaipulya-sūtras of the Mahāyāna and probably were composed around the beginning of the Common Era. Some sūtras are preserved in Sanskrit, however most of them have come down only in Chinese or Tibetan translation. Those best known in the West are the Diamond Sūtra (Vajrachchedikā) and the Heart Sutra (Mahāprajñāpāramitā-hridaya-sūtra). Their most important interpreter was Nāgārjuna.