金剛經纂要刊定記 4.295

4.295

了因者，以法身是本真之理，不生不滅，但以煩惱覆之則隱，智慧了之則顯，持說此法妙慧自彰，觀破煩惱法身現矣。

As for the revealing cause: because the dharmakāya is the fundamentally real principle, unborn and undying, it is merely concealed when covered by afflictions, and disclosed when revealed by wisdom; when one upholds and expounds this Dharma, wondrous wisdom becomes evident of itself, and contemplating and destroying afflictions, the dharmakāya manifests.