Only in some very special cases is comprehension the point of reading--in things like recipes and "reading material." The point of reading is understanding, and comprehension is to understanding as getting wet is to swimming. You must do the one before you can hope to do the other, but you don't do the other simply because you do the one.
Richard Mitchell, The Leaning Tower Of Babel And Other Affronts By The Underground Grammarian
comprehension, reading, understanding