He laid the foundation of the Jodo Sect by preaching that there is no other way but praying to Amitabha wholeheartedly to be granted the gokuraku ojo posthumously.
死後に極楽往生するには、一心に仏を想い念仏の行をあげる以外に方法はないと説き、浄土教の基礎を創る。