They preached 'Sokushin Jobutsu' (Attaining Buddhahood with the Present Body), saying that one can complete the path to Buddhahood by performing Sanmitsukaji (three mystic practices) to symbolize this non-historical existence: thinking of Buddha in your heart, chanting mantra, and making symbolic signs (gestures) with the fingers.
心で仏を想い、口に真言を唱え、手で印を結ぶ三密加持を行じ、みずからこの非歴史的存在を象徴することで成道できるとする「即身成仏」を唱えた。