Tōrei Enji

Tōrei Enji (東嶺円慈) (8 May 1721 - 10 April 1792) was an eminent Japanese Zen Buddhist monk, teacher, author, painter and calligrapher. He was the chief disciple and heir of famed Japanese Rinzai master Hakuin Ekaku (1685–1786). He wrote an influential text on Zen practice called "The Undying Lamp of Zen" (Shūmon mujintō ron), which gives an overview of Hakuin's views and practices with regard to the Buddhist path.