Taho Nyorai who in the past, reached enlightenment by the teachings of Hoke-kyo Sutra in the land called Treasure Purity in the east pledged to himself, 'If there's anyone anywhere in the world who preaches Hoke-kyo Sutra, I will appear with a hoto and prove its truthfulness.'
過去に東方宝浄国にて法華経の教えによって悟りを開いた多宝如来は「十方世界（世界のどこにでも）に法華経を説く者があれば、自分が宝塔とともに出現し、その正しさを証明しよう」という誓願を立てていたのであった。