The other night I had a dream that there was a hole in my thumb. Near the base, a slot about two millimetres long by perhaps five millimetres across. I could look through the hole and see inside my thumb. No blood, but a kind of weird mostly hollow structure, a bit like the inside of a capsicum, but skin-coloured. It didn’t hurt. I marvelled at it for a bit, and it was one of those dreams which isn’t immediately obviously a dream.