On the subject of what we do and don't see - this is something I didn't see.

I clearly remember taking the photograph and have looked at it many times since. There was always something that appealed to me about it, though I didn't give much consideration to what that might be. Just a week or so ago, when I was looking at photos I might include in the blog, I looked at it, thought I might include it and then realized there was a hand resting on the old dog's back. That look of quite satisfaction on his face, I'm sure is a response to the tangible affection he feels from the hand on his back. A lovely image, I didn't even understand why until recently.