What gives meaning to my life?

I'm that kind of person who is happy if he is occupied. If I know what are my tasks in line.... Say ducks in a row... I feel enough. I feel happy. If there are not many things to do... Or if there are so many things to do unorganised... I feel messy inside my head.
What I have realised about myself is, business makes me happy. Having things to or say having lots of things to do keeps me focused and gives meaning to my day to day life.
So in my world I would say, working man is a happy man. Busy man is a lucky man.