In this paper, based on Shinran’s main work, Kyōgyōshinshō, I consider the important elements of the faith in the Daimuryōjukyō clarified by Shinran. In particular, this paper pays attention to the interpretation of the true gate that Shinran sets forth in the “Keshindo no maki” (化身土巻,Chapter on Transformed Buddha-bodies and Lands), and describes the content of the human mind that doubts the Buddha’s wisdom and how he understood one could overcome that doubt.