起信論疏筆削記 15.3

15.3

二、大願。疏　廣大心者，即四弘中眾生無邊誓願度，亦同《金剛》中佛令發菩提心人普度四生九類。彌勒所釋，亦云廣大心。長時心者，此同《華嚴．行願經》說：眾生界盡，我行方盡。以眾生界無有盡故，我此行願亦無有盡。上則約處橫說，故云等眾生界。此則約時竪論，故云盡於未來。

2. "Great vows":
[Commentary:] "The vast and great mind": this is the "sentient beings are boundless, I vow to deliver them" among the four universal vows. It also accords with the Buddha's command in the Vajracchedikā to those who give rise to the bodhimind to deliver universally the four modes of birth and nine classes. Maitreya's commentary also calls it "the vast and great mind". "The long-enduring mind": this is identical to what the Avataṃsaka's Bhadracarīpraṇidhāna says: "Only when the realm of sentient beings is exhausted will my practice be exhausted; because the realm of sentient beings is inexhaustible, my practice and vows are also inexhaustible." The former is discussed horizontally in terms of space; hence it says "equal to the realm of sentient beings". The latter is discussed vertically in terms of time; hence it says "exhausting the future".