The volume of "Muryoju-kyo Ubadaisha Ganshoge-chu" (Commentary on [Vasubandhu's] Upadesa on the Sutra of Immeasurable Life) says 'When you see three existences (past, present and future) of Edo, there is the dimension of the fallacious, the dimension of rotation and the dimension of infinitude, like an inchworm that circles or like a silkworm which ties itself in a cocoon.'
『無量寿経優婆提舎願生偈註』巻上では、「三界を見るに、これは虚偽の相であり、これは輪転の相であり、これは無窮の相であり、尺蠖の循環するが如く、蚕繭の自縛するが如し」という。