Eisai Buddhist Japan: the "Lotus Sutra", "Golden Light Sutra", and the "Humane King Sutra" ("Ninnōkyō"). Eisai’s famous written piece, the "Kōzen gokokuron" or "The Promotion of Zen for the Protection of the Country", was heavily influenced by the "Ninno kyo" which states “the preservation of Buddhism is inextricably bound to the preservation of their own country”. The "Kōzen gokokuron" was written with the intention to correct established schools of Buddhism by giving them examples of moral practice and to convince the Minamoto military rulers to support Zen Buddhism and a Zen government. The writing promotes the Zen ideals to bring Buddhism
Faith in Buddhism of Buddhist theory and practice. This development led to the devotion movement of Pure Land Buddhism, whereas in Zen Buddhism it led to the emphasis of seeking the Buddha Nature within oneself. Terms for faith that are primarily used in Mahāyāna Buddhism are "Xin" (Chinese) and "shin" (Japanese): these terms can refer to trust, but also an unquestioned acceptance of the object of one's devotion. They are also used, as it is in Chan and Zen Buddhism, with regard to a confidence that the Buddha nature ("tathāgatagarbha") is hidden within one's mind, and can be found as one suspends the