"“Now what do you think, Śāriputra, why is that tathāgata called ‘Amitāyus’ (Immeasurable Life)? Śāriputra, the lifespan of Tathāgata Amitāyus is immeasurable. For this reason, he is called ‘Tathāgata Amitāyus.’ Furthermore, Śāriputra, why is that tathāgata called ‘Amitābha’ (Immeasurable Light)? Śāriputra, the light of Tathāgata Amitābha shines unimpeded throughout all buddha realms. For this reason, he is called ‘Tathāgata Amitābha.’ The Bhagavān Tathāgata Amitābha fully awakened to unsurpassable, completely perfect enlightenment ten eons ago.""