When we decide to be happy we accept the responsibility to bring happiness to someone else. Some decide that happiness and glee are the same thing, they are not. When we choose happiness we accept the responsibility to lighten the load of someone else and to be a light on the path to another who may be walking in darkness.
Most people don't grow up. Most people age. They find parking spaces, honor their credit cards, get married, have children, and call that maturity. What that is, is aging.
When you saw me in the boxing ring fighting, it wasn't just so I could beat my opponent. My fighting had a purpose. I had to be successful in order to get people to listen to the things I had to say.