維摩經義記卷第四 4.39

4.39

First, from “The Buddha preached the Dharma for them in the Āmrapālī grove…” onwards down to “because this Vimalakīrti wished to request it, he first manifested this auspicious response,” it explains that as they were about to go to the Buddha's dwelling to seal and ratify what had been spoken, a light was first manifested to show the signs of their arrival, causing all the people in the Āmrapālī grove to give rise to admiration in advance.