首楞嚴義疏注經 10.250

10.250

中途成狂者，方在似覺，未成不退，邪慧發生，故云成狂。不察識陰微細生滅，便謂已證，故云因依迷惑等。餘文可解。

'Becoming mad halfway' means that while only at the semblance of awakening and before achieving non-retrogression, deviant wisdom arises; hence it is said: 'becoming mad.' Failing to inspect the subtle arising and ceasing of the aggregate of consciousness, they promptly deem themselves to have realized it; hence it is said: 'because of reliance on delusion,' and so forth. The rest of the text can be understood.