In ZenBuddhism, sitting meditation or zazen (Japanese: 座禅; literally "seated concentration") is a meditative discipline practitioners perform to calm the body and the mind and attain insight into the nature of existence. While the term originally referred to a sitting practice, it is now commonly used to refer to practices in any posture, such as walking.
In Japan, seated zazen is traditionally performed on a mat called a zabuton while sitting on a cushion called zafu. The common positions used to sit on the zafu are:
Burmese (a cross-legged posture in which the ankles are placed together in front of the sitter)
seiza (a kneeling posture using a bench or zafu)
In addition, it is not uncommon for modern practitioners to sit zazen in a chair, often with wedge behind the lower back to help maintain the natural curve of the spine.
During zazen, the hands are folded together into a simple mudra over the belly. In many practices, one breathes from the hara (the center of gravity in the belly) and the eyes are half-lowered, being neither fully open nor shut.
Long periods of zazen, usually performed in groups at a zendo (meditation hall), may alternate with periods of kinhin (walking meditation). The beginning of a zazen period is traditionally announced by ringing a bell three times (shijosho), and the end of a round by ringing the bell once (hozensho). Before and after sitting on the zafu, zen practitioners perform a gassho bow to the cushion, to fellow practitioners, and to the teacher.
