首楞嚴義疏注經 10.202

10.202

所歸即識陰，前覽所歸為自身，今認所歸為他體，故疑自身及一切法從彼生起。都宣流地者，即識陰也。妄認為他是真、是常、是無生滅、惑不生者，本覺常住，不生諸法，迷而不解也。亦迷生滅者，妄認識陰為真常也。二俱不識，故曰沈迷。堅執不轉，故云安住。

What he returns to is the aggregate of consciousness. Previously he grasped what he returned to as his own body; now he identifies what he returns to as the nature of another, thereby suspecting that his own body and all dharmas arise from it. The 'ground whence all originates and flows forth' is the aggregate of consciousness. Falsely identifying it as another that is true, permanent, and free from arising and ceasing—'confused about the non-arising' means that fundamental awakening permanently abides and does not produce dharmas, but he is deluded and does not understand it. 'Deluded about arising and ceasing' means falsely identifying the aggregate of consciousness as truly permanent. Not knowing either of them, it is called 'deep delusion.' Tenaciously grasping without turning back, it is called 'resting stably.'