Happiness is just like a balloon. When something gives us joy, our balloon fills up bigger and bigger...and those people that have depression, and who aren't very happy, their balloons have just yet to be filled up. Unfortunately though, every once in a while, a person's balloon will pop. And the happy air will try to fill it up again but it does nothing but blow around the shreds of rubber. Be careful with your balloons, folks. Don't let them pop.