首楞嚴義疏注經 3.15

3.15

「何以故？若從明來，暗即隨滅，應非見暗。若從暗來，明即隨滅，應無見明。若從根生，必無明暗。如是見精本無自性。若於空出，前矚塵像，歸當見根。又空自觀，何關汝入？」

"Why is this? If it came from brightness, darkness would then be extinguished, and one should not see darkness. If it came from darkness, brightness would then be extinguished, and one should have no seeing of brightness. If it arose from the faculty, there would certainly be neither brightness nor darkness. Thus, the essence of seeing originally has no own-nature. If it emerged from space, looking forward it would observe the images of dust, and returning it should see the faculty. Furthermore, if space itself perceives, what does that have to do with your sense entrance?"