zazen ［坐禅］ (): Seated meditation. The term zazen specifically indicates the form of seated meditation practiced in the Zen school of Buddhism. The practice of zazen is emphasized especially in the Sōtō school of Zen in Japan. Seated meditation was widely practiced in ancient India. Shakyamuni Buddha sat in meditation when he attained enlightenment under the bodhi tree, and incorporated the practice into his teachings. Seated meditation was introduced with Buddhism to China, where various Buddhist schools employed it. T’ien-t’ai (538–597) taught it as core to the integrated system of disciplines he prescribed for observing the true nature of one’s mind.