大方廣佛華嚴經疏 6.29

6.29

In the second approach, "according with all," and so on, means attaining liberation from the inability to manifest universally. As for the words "light and shadow," there are briefly two explanations: first, it means that shadow is cast due to light, and the shadow resembles only the substance and not the light; forms are manifested relying on wisdom, and the forms accord with the inclinations of the assembly and do not accord with one's own wisdom. Responding in accordance with inclinations is called "universal manifestation." Second, the moon in the water is also called "light and shadow," meaning that the Buddha-moon does not arrive, yet its reflection appears in the water of the mind; the reflection mostly resembles the moon and slightly resembles the water, meaning that when the water moves, the flowing light ripples, and when the water is turbid, it resembles a dark moon. If approaching a pond that is still and clear, the round jade disc is brilliant. This also accords with the intentions of oneself and others. Here, in terms of the deva king, it merely accords with what the deva assembly delights in; the verse, in terms of the Buddha, leaves nothing unresponded to.