Comprehension (n.) is not read off a schema once built: it is realized in and by the building — once the schema exists, there is nothing left to comprehend.
Comprehension (n.) is realized as imaged but not by the image — the schema, far from aiding intellection, often slows and deviates it.
Comprehension (n.) of a word, on the unreflective plane, is the sudden appearance of the object: invited to grasp 'nature imitates art', we first turn to the things themselves to contemplate them.
Comprehension (n.) is very often only this: the schema plus the idea that one could, that one ought, go further.
Comprehension (n.) in images is never-ending — the mind answers an image with another image, in principle to infinity; to reach naked thought takes a revolution, a jump to the reflective plane with no staircase.