Huayan

The Huayan school of Buddhism (, Wade–Giles: ''Hua-Yen,'' "Flower Garland," from the Sanskrit "''Avataṃsaka''") is a Mahayana Buddhist tradition that developed in China during the Tang dynasty (618-907). The Huayan worldview is based primarily on the ''Buddhāvataṃsaka Sūtra'' (, ''Flower Garland Sutra'') as well as on the works of Huayan patriarchs, like Zhiyan (602–668), Fazang (643–712), Chengguan (738–839), Zongmi (780–841) and Li Tongxuan (635–730).

Another common name for this tradition is the Xianshou school (''Xianshou'' being another name for patriarch Fazang). The Huayan School is known as Hwaeom in Korea, Kegon in Japan and Hoa Nghiêm in Vietnam.

The Huayan tradition considers the ''Flower Garland Sutra'' to be the ultimate teaching of the Buddha. It also draws on other sources, like the ''Mahayana Awakening of Faith,'' and the Madhyamaka and Yogacara philosophies. Huayan teachings, especially its doctrines of universal interpenetration, nature-origination (which sees all phenomena as arising from a single ontological source), and the omnipresence of Buddhahood, were very influential on Chinese Buddhism and also on the rest of East Asian Buddhism. Huayan thought was especially influential on Chan (Zen) Buddhism, and some scholars even see Huayan as the main Buddhist philosophy behind Zen.

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