I was also wondering.
When I was a kid, I liked to watch girls braid each others hair, or brush each others hair. It gave me a very good sensation in my body, like the rushing good feeling you get when you hear the chorus of a great song for the first time.
I also liked to watch people drawing intently, or intently reading and turning the pages of a book. This would give me the same good feeling inside my body. In my memory the feeling was a 'rising' feeling, rising through my body, but im not sure. I haven't had that feeling since I was young.
I was wondering if that was somehow energy related.

David