"In Zen Buddhism, zazen (literally "seated meditation"; Japanese: 坐禅; simplified Chinese: 坐禅; traditional Chinese: 坐禪; pinyin: zuò chán; Wade–Giles: tso4-ch'an2) is a meditative discipline practitioners perform to calm the body and the mind, and be able to concentrate enough to experience insight into the nature of existence and thereby gain enlightenment." (Wikipedia)