In addition, though all major manuscripts by Buddhist priests were written in Chinese characters, such as those of Honen, "Kyogyoshinsho" (Teaching, Practice, Faith, and Enlightenment) by Shinran, and those of Eisai and Nichiren among others, he made the descriptions in Japanese Kana so that the truth could be understood more accurately.
また、鎌倉時代の仏教者の主著が全て漢文で書かれている（法然、親鸞『教行信証』、栄西、日蓮、…）時代に、真理を正しく伝えたいという考えから日本語、仮名で著述している。