大方廣佛華嚴經疏 54.7

54.7

三亦有為亦無為法界有二者：一隨相門，謂受想行蘊及五種色并八無為，此十六法唯意所知，十八界中名為法界；二無礙門，謂一心法界具含二門，一心真如門、二心生滅門。雖此二門皆各總攝一切諸法，然其二位恒不相雜，其猶攝水之波非靜、攝波之水非動故。第四迴向云「於有為界示無為法，而不滅壞有為之相；於無為界示有為法，而不分別無為之性。」此明事理無礙。

Third, the two for the both conditioned and unconditioned dharmadhātu: 1. the gate of according with marks: meaning the aggregates of sensation, conception, and mental formations, plus the five kinds of matter and the eight unconditioned [dharmas]—these sixteen dharmas are cognized only by the mind-faculty, and among the eighteen dhātus are named dharmadhātu; 2. the gate of non-obstruction: meaning that the one-mind dharmadhātu fully contains two gates: first, the gate of the one mind's tathatā, and second, the gate of the one mind's arising and ceasing. Although these two gates each completely subsume all dharmas, their two states are constantly not commingled, just as the waves that subsume water are not tranquil, and the water that subsumes waves is not moving. The Fourth Dedication states: 'Displaying unconditioned dharmas within the conditioned realm without destroying the marks of the conditioned; displaying conditioned dharmas within the unconditioned realm without discriminating the nature of the unconditioned.' This clarifies the non-obstruction between noumenon and phenomena.