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 in the United States expositor of Zen Buddhism and its unofficial ambassador to Western readers until his death in 1966. His 1949 book, "An Introduction to Zen Buddhism", featured a thirty-page introduction by Carl Jung, an emblem of the deepening relationship between Buddhism and major Western thinkers. One American who attempted to establish an American Buddhist movement was Dwight Goddard (1861–1939). Goddard was a Christian missionary to China when he first came in contact with Buddhism. In 1928, he spent a year living in a Zen monastery in Japan. In 1934, he founded "The Followers of Buddha, an American Brotherhood," with the goal of