Meanwhile, in the Shingon sect, "Goyuigo," words left by Kukai at the time of his death, were given importance and were regarded to be the rules that were to be followed by priests and believers of this sect.
また、真言宗においては空海が死去の際に遺した『御遺告』が同宗の僧侶・信徒の守るべき規範として重要視された。