梵網經菩薩戒本疏 1.16

1.16

第三，一頌二句明化佛就報領受戒法。於中初句標舍那本身是化佛所出之處，故須標也。次句舉化身數。次句明掌持大眾具眷屬相。次句顯主伴俱來至我舍那所。次句正明領受戒法。次句明說戒利益，謂此妙戒諸說中最，同於甘露味之中上，於此創演故曰門開。又釋甘露有三義：一、當食宛飢，同攝善內備；二、當飲除渴，同攝生濟之；三、當藥病療，同律儀斷惡。故以為喻。又釋甘露是仙藥，服者長生，得此戒命盡未來際故也。

Third, one verse and two lines clarify that the transformation Buddhas approach the retribution [body] to receive the Dharma of the precepts. Therein, the first line marks Rocana's original body as the place from which the transformation Buddhas emerge, so it must be marked. The next line brings up the number of transformation bodies. The next line clarifies that they hold and lead the great assembly, possessing the marks of a retinue. The next line reveals that principal and retinue all come together to where I, Rocana, am. The next line directly clarifies the receiving of the Dharma of the precepts. The next line clarifies the benefit of expounding the precepts: that this wondrous precept is supreme among all teachings, identical to the highest among the flavors of amṛta; being first expounded here, it is therefore called "the gate opening." Another explanation is that amṛta has three meanings: 1. corresponding to food relieving hunger, identical to the precepts collecting good qualities being internally provided; 2. corresponding to drink dispelling thirst, identical to the precepts collecting sentient beings providing rescue; 3. corresponding to medicine curing disease, identical to the precepts of restraining conduct cutting off evil. Therefore it is used as an analogy. Another explanation is that amṛta is an elixir of immortality which grants long life to those who consume it; by obtaining these precepts, life lasts until the limits of the future.