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
A National Strategic Narrative A National Strategic Narrative A National Strategic Narrative is a United States strategy document. In 2009, during a strategy brief to Secretary of Defense Robert Gates, Captain Wayne Porter (US Navy) noted the lack of a United States grand strategy, which could act as a guide or inspiration for all strategies of the US government. Admiral Michael Mullen, then Chairman of the Joint Chiefs of Staff, charged Captain Porter with writing such a grand strategy. Concurrently, Colonel Mark "Puck" Mykleby (US Marine Corps) and the strategy team at USSOCOM were developing some of the baseline concepts that are reflected in