The creed of Nichijin was classified into Shakahonbutsuron (a theory which insists that Shakyamuni is the real Buddha and the Shoretsu school - a school of the Nichiren sect which emphasizes Honmon - the latter part of Hokke-kyo Sutra - the Lotus Sutra).
日陣の教義は釈迦本仏論で勝劣派である。