Some days I sit, stand, walk with a sense of something, make that someone, who used to be in my field of spatial awareness but is now gone. That might have been in the same room, walking on the same sidewalk, taking up the other back seat of the car or a more distant spot all the way across the country. Like when you walk into a room and notice something is off. An item that was on the table but is now absent. Or heading out the door for the day and realizing a pocket that usually contains a phone, keys or a wallet is noticeably empty. This is so much more than those trivial perceptions, the off feeling, looking around, and knowing there is no restorative action to take. Instead it is that occasional re-reminder of who used to be, and is no more and all that previous relationship entailed.