首楞嚴義疏注經 2.601

2.601

「若目出者，既從目出，還從目入，即此華性從目出故當合有見，若有見者，去既華空，旋合見眼。若無見者，出既翳空，旋當翳眼。又見華時目應無翳，云何晴空號清明眼？」

"If they came out of the eyes, having come out of the eyes they should return into the eyes. Since the nature of these flowers came out of the eyes, it ought to possess sight. If it has sight, then when going out it flowers in space, and upon returning it ought to see the eyes. If it lacks sight, then when going out it veils space, and upon returning it should veil the eyes. Furthermore, when seeing the flowers, the eyes ought to be free of cataracts; why then, when [looking at] clear space, are they called clear eyes?"