When foolish beings possessed of blind passions, the multitudes caught in birth-and-death and defiled by evil karma, realize the mind an practice that Amida directs to them for their going forth, they immediately join the truly settled of the Mahayana. Because they dwell among the truly settled, they necessarily attain nirvana. To necessarily attain nirvana is [to attain] eternal bliss. Eternal bliss is ultimate tranquility. Tranquility is supreme nirvana. Supreme nirvana is uncreated dharma-body. Uncreated dharma-body is true reality. True reality is dharma-nature. Dharma-nature is suchness. Suchness is oneness. Amida Tathagata comes forth from suchness and manifests various bodies - fulfilled, accommodated, and transformed.
ch. IV, v. 1