大方廣佛華嚴經疏 49.7

49.7

第二「爾時」下本分，中三：初徵事而問、次引例以答。答即是本，後「說是語」下表瑞證成，顯說希奇，纔聞其名已有徵故。大地動者，大法將顯、大惑將傾故。出問法光者，冥加智慧，助發請故。

Second, the fundamental part from "at that time..." onward. Within this, there are three: first, inquiring by citing events; next, answering by citing precedents—the answer is precisely the fundamental part; afterwards, from "having spoken these words..." onward, manifesting auspicious signs to verify and accomplish, showing that the exposition is rare and marvelous, for having merely heard its name there are already omens. The great earth shaking is because the great Dharma is about to be revealed and great delusions are about to be overturned. The emission of the light of asking the Dharma secretly empowers with wisdom to assist in launching the request.