Kakuban deplored the internal conflict seen in the corrupt Kongobu-ji Temple, so he implemented "mugon no gyo" (the discipline of not talking) for more than three years, and just after the discipline, he is said to have written at a stretch the well-known "Mitsugon-in Hotsuro Sange no Mon" (Religious Confession at Mitsugon-in Temple).
覚鑁が、腐敗した金剛峯寺の内紛に憂いを持ち、密厳院において３余年に及ぶ無言行を敢行した直後に書き上げたと言われる密厳院発露懺悔文は有名。