維摩經玄疏 2.107

2.107

二、明能觀者，若觀此一念無明之心，非空非假，一切諸法亦非空、假，而能知心空、假，即照一切法空、假。是則一心三觀圓照三諦之理，不斷癡愛，起諸明脫，若水澄清，珠相自現，此即觀行即也。

Second, clarifying that which is able to contemplate: if one contemplates this single thought-moment of the mind of ignorance as neither empty nor provisional, and all phenomena as likewise neither empty nor provisional, yet is able to know the mind as empty and provisional, then one illuminates all phenomena as empty and provisional. This is the threefold contemplation in a single mind fully illuminating the principle of the three truths, giving rise to all clarities and liberations without cutting off delusion and craving; just as when water is clarified, the form of the jewel appears of itself. This is identity in contemplative practice.