Its main sutras (正依) are "Kegon-kyo Sutra"(Avatamska Sutra) and "Hoke-kyo Sutra" (Lotus Sutra) and minor sutras (傍依) are "Muryoju-kyo Bussetsu Muryoju-kyo Sutra"(Sutra of Infinite Life) and "Kanmuryoju-kyo Sutra" ('The Sutra of Visualization of the Buddha of Measureless Life,' meaning Amida) and "Amida-kyo Sutra" (Amida Sutra), and it preaches that reciting Buddhist invocation makes people reincarnated in Jodo, pure land, from the viewpoint that 'Buddhist invocation by one person equals Buddhist invocation to all people.'
『華厳経』・『法華経』を正依とし、『無量寿経仏説無量寿経』・『観無量寿経』・『阿弥陀経』を傍依として、「1人の念仏が万人の念仏に通じる」という立場から、口称の念仏で浄土に生まれると説く。