Zazen (literally "seated meditation"; Japanese: 座禅; simplified Chinese: 坐禅; traditional Chinese: 坐禪; pinyin: zuò chán; Wade–Giles: tso4-ch'an2, pronounced [tswô ʈʂʰǎn]) is a meditative discipline that is typically the primary practice of the Zen Buddhist tradition. In the Japanese Buddhist Rinzai school, zazen is usually combined with the study of koans. The Japanese Sōtō School makes less or no use of koans, preferring an approach known as shikantaza where the mind has no object at all.