In the earliest years, he wrote 'Jodo ketsugi-sho' (Deciding the Meaning of the Pure Land) in which he criticized Honen's 'Senchaku hongan nenbutsu shu' (Holy Writings of the Jodo Sect) which was written in 1198; but in later years, he is said to have devoted himself to nenbutsu (Buddhist invocation).
当初は1198年（建久9年）法然が「選択本願念仏集」を著したとき、これを批判した「浄土決疑抄」を著したりしたが、後に念仏に帰依したとされる。