It was to teach everyone that common people could also receive salvation through Amida Buddha by praying to myogo, which could be handed to anyone, without any difference between the rich and the poor.
誰にでも手渡せる名号を、貧富の差なく礼拝し、自分たち庶民も阿弥陀仏の救済の対象であるのだと伝えるためである。