Dhyāna in Buddhism "silent illumination." This became the source of some differences in practice between the Línjì and Cáodòng schools. A kōan, literally "public case", is a story or dialogue, describing an interaction between a Zen master and a student. These anecdotes give a demonstration of the master's insight. Koans emphasize the non-conceptional insight that the Buddhist teachings are pointing to. Koans can be used to provoke the "great doubt", and test a student's progress in Zen practice. Kōan-inquiry may be practiced during zazen (sitting meditation), kinhin (walking meditation), and throughout all the activities of daily life. Kōan practice is particularly emphasized by
Zen Zen Zen (; ) is a school of Mahayana Buddhism that originated in China during the Tang dynasty as Chan Buddhism. It was strongly influenced by Taoism and developed as a distinct school of Chinese Buddhism. From China, Chan Buddhism spread south to Vietnam which became Vietnamese Thiền, northeast to Korea and east to Japan, where it became known as Seon Buddhism and Japanese Zen, respectively. The term Zen is derived from the Japanese pronunciation of the Middle Chinese word 禪 (Chan) which traces its roots to the Indian practice of Dhyāna ("meditation"). Zen emphasizes rigorous self-control, meditation-practice, insight into