首楞嚴義疏注經 10.327

10.327

正顯虛妄也。初二句反標。若此湛明是真實性，不合容受虛妄習氣。習氣，即種子也。何因下九句順釋。憶忘俱無者，初若有憶則有忘時；元既無憶，故不說忘。覆覩者，再見也，再見既無所遺，此則容受妄習，故知虛妄非真湛明。則此下結示也，受熏持種發起現行，流注生滅不可計矣。

This directly reveals its illusory nature. The first two lines raise the counter-premise: if this tranquil clarity were the true nature, it should not admit illusory habitual tendencies. Habitual tendencies are seeds. The next nine lines from "Why is it" provide a sequential explanation. "There was neither recollection nor forgetting": if there were initially recollection, there would be a time of forgetting; since fundamentally there was no recollection, one does not speak of forgetting. "Saw... again" means to behold it a second time; since upon seeing it again nothing was lost, it admits illusory habituation; thus one knows it is illusory and not truly tranquil clarity. From "Thus, within this" onward is the concluding instruction: receiving perfuming, retaining seeds, and initiating active dharmas—its stream of arising and ceasing cannot be reckoned.