無量壽經優婆提舍願生偈註 1.3

1.3

此《無量壽經優婆提舍》，蓋上衍之極致、不退之風航者也。無量壽是安樂淨土如來別號。釋迦牟尼佛在王舍城及舍衛國，於大眾之中說無量壽佛莊嚴功德，即以佛名號為經體。後聖者婆藪槃頭菩薩服膺（一升反）如來大悲之教，傍經作願生偈，復造長行重釋。

This Upadeśa on the Sūtra of Immeasurable Life is indeed the ultimate reach of the Great Vehicle, the wind-blown vessel of non-retrogression! "Immeasurable Life" is the distinctive name of the Tathāgata of the Pure Land of Peace and Bliss. When Śākyamuni Buddha was in Rājagṛha and the realm of Śrāvastī, he expounded among the great assembly the adornment of merits of the Buddha of Immeasurable Life, thus taking the Buddha's name as the core subject of the sūtra. Later, the holy Bodhisattva Vasubandhu took to heart the teaching of the Tathāgata's great compassion, composed verses of aspiration for rebirth based on the sūtra, and further composed prose to explain them again.