Kichizo annotated in his 'Shoman hokutsu' (interpretation of Shoman-gyo Sutra), 'obstinacy should be crushed, crushed to separate a person from the evil spirit, pliability should be adopted, adopted to lead a person to the home of goodness. These are examples of how shoju and shakubuku were named.'
吉蔵は、「勝鬘宝窟（しょうまんほうくつ）」で、「強情は伏すべし。伏して悪を離れしむべし。柔軟（にゅうなん）は摂すべし。摂して善に住せしむ。故に摂受・折伏と名づくなり」と注釈した。