For me, it is a joy. It converts a grumpy tired guy to a guy who gets on the floor and laughs and plays with kids and dogs. Instead of flipping though channels on the couch, I hug my wife, go outside, laugh.
I remember one time after a good mountain bike ride, endorphins going, I got back to my car and cranked some great tunes. I felt so good out there in the middle of the woods all alone. Buzz, nature, endorphins - the perfect triple play. So the music's cranking, and I hit this euphoric state where I'm dancing and then jumping for joy, jumping up and down....alone, in the woods....