首楞嚴義疏注經 9.209

9.209

結益也。超劫濁者，以劫濁是色陰之體。最初一念能所纔立，即是空見不分，名為劫濁。從無忽有，有即色也。今破色陰，是故超越。堅固妄想者，覺明堅執，質礙便成為色之體，故云堅固。

Concluding with the benefit. Transcending the kalpa turbidity is because kalpa turbidity is the substance of the aggregate of form. When the very first thought of subject and object is just established, space and sight are not yet separated; this is called kalpa turbidity. From nonexistence it suddenly becomes existence, and existence is form. Now that the aggregate of form is broken, one therefore transcends it. 'Solid false thinking' means that enlightenment's brightness is clung to solidly, and resistant matter immediately forms the substance of form, hence called 'solid'.