The teachings of Zen include various sources of Mahāyāna thought, especially Yogācāra, the Tathāgatagarbha Sutras and Huayan, with their emphasis on Buddha-nature, totality, and the Bodhisattva-ideal.[10][11] The Prajñāpāramitā literature[12] and, to a lesser extent, Madhyamaka have also been influential.