ZEN

The term Zen is derived from the Japanese pronunciation of the Middle Chinese word 禪 (chán), an abbreviation of 禪那 (chánnà), which is a Chinese transliteration of the Sanskrit word of dhyāna ("meditation").[note 1] Zen emphasizes rigorous self-restraint, meditation-practice, insight into the nature of mind (見性, Ch. jiànxìng, Jp. kensho, "perceiving the true nature") and nature of things, and the personal expression of this insight in daily life, especially for the benefit of others. As such, it de-emphasizes mere knowledge of sutras and doctrine and favors direct understanding through spiritual practice and interaction with an accomplished teacher or Master.

The teachings of Zen include various sources of Mahāyāna thought, especially Yogachara, the Tathāgatagarbha sūtras, the Laṅkāvatāra Sūtra, and the Huayan school, with their emphasis on Buddha-nature, totality, and the Bodhisattva-ideal. The Prajñāpāramitā literature as well as Madhyamaka thought have also been influential in the shaping of the apophatic and sometimes iconoclastic nature of Zen rhetoric.