Who Controls Your Happiness

This is a question that could have been asked, What makes you happy I suppose? Because most people think things make them happy. Then when those things don't materialize they are unhappy. I here people saying things all the time like when I make more money I will be much happier?

Maybe but why not be happy despite of your external circumstances Why would I want to allow things outside of my control to make me happy or sad?

I control my happiness!