I think I've indulged in a pathological, chronic nostalgia over the years, which I've traced back to my childhood. I was the last of four children, born well after the other three, so I was left on my own in a big, quiet house where most of the people had left, and even the echoes of a happy family had all died out.
His whole body was completely still, except the wings, which were still fluttering a little, like when someone dies. That's when he finally understood that of all the things the angel had told him, nothing was true. That he wasn't even an angel, just a liar with wings.