What is "muyan"

Muyan (; Japanese Mokuan Shōtō) (1611–1684) was a Chinese Chan monk who followed his master Yinyuan Longqi to Japan in 1654.

Together they founded the Ōbaku Zen school and Mampuku-ji, the school's head temple at Uji in 1661. In 1664, Muyan succeeded his master as chief of the temple and in 1671 established another temple called Zuishō-ji at Shirokane, Edo. He is honored as one of the Ōbaku no Sanpitsu.