His four criticisms (directed at Shingon Buddhism as a threat to the nation, Zen Buddhism as the work of the devil, Nenbutsu Buddhism as infernal doctrine and Ritsu Buddhism as an act of treason) are known, respectively, as "Shingon Bokoku," "Zen Tenma," "Nenbutsu Muken" and "Ritsu Kokuzoku."
いわゆる真言亡国、禅天魔、念仏無間、律国賊（しんごんぼうこく、ぜんてんま、ねんぶつむけん、りつこくぞく）の四つをいう。