釋淨土群疑論 2.38

2.38

Question: The practitioners who vow to be reborn in the pure land either uphold the purificatory precepts for one day and one night, or are filial to their two parents. If they do not vow to be reborn [in the pure land], this karma brings the retribution of humans or gods. The maximum lifespan in Jambudvīpa does not exceed one hundred years; as for the heavens, in the six [heavens of] desire, the maximum lifespan is at most sixteen thousand years. Now, if they dedicate this practice of precepts and vow to be reborn in the West, how can they, through this good cause, attain a lifespan of immeasurable, boundless asaṃkhyeya kalpas? Since the causal precept is not different, and there is no difference in its superiority or inferiority, how can the duration of the life retribution—its extension or shortness—be so vastly separated?