Koan - [Source: Glossary in The Eight Gates of Zen] “An apparently paradoxical statement or question used in Zen training to induce in the student an intense level of doubt, allowing them to cut through conventional and conditioned descriptions of reality and see directly into their true nature” (Loori, 2002, p. 265).
[Source: A Comprehensive Glossary of Zen Buddhism Terminology] A paradoxical question or statement used mostly within the Rinzai school of Zen to provoke insight and realization, often unanswerable through conventional thinking. (Fuyu, 2023).