In Zen, the word “Busshin” refers to the enlightenment of the Buddha. Zen Buddhism is often called “Busshin school”, seeking the direct realization of Buddha’s enlightenment, to thus cherish the phrase, especially

This work was written by a modern Zen monk born in Aichi Prefecture, Tsuji Jōkan. The work, written by him, who is the chief priest of the Kisshōji Temple on the Daitokuji School of the Rinzai-shū sect, is full of Buddhist virtues (The merits, or blessings, of the Buddha. The workings of its benefits.) as a masterpiece of dignity, inspiring a sense of awe in the audience.