Imagine how happy you would be if you somehow knew that you would never experience trouble in your life again. Obviously, as believers we are not there yet. But we do have a promise that is almost as good. God promises that all the troubles that do come into our life have a purpose and our intended for our benefit. Imagine that! Somehow every single difficulty that comes into our lives is being used by God to accomplish our best. And that, I think, is a reason for happiness.