Occhiolismoh-kyoh-liz-uhm

n. The awareness of how fundamentally limited your senses are--noticing how little of your field of vision is ever in focus, how few colors you're able to see, how few sounds you're able to hear, and how intrusively your brain fills in the blanks with its own cartoonish extrapolations--which makes you wish you could experience the whole of reality instead of only ever catching a tiny glimpse of it, to just once step back from the keyhole and finally open the door.