If I have convinced you of nothing else, I hope it is this: fun isn’t just a result of human thriving; it is a cause. Fun encourages engagement with the world. It invigorates us and nourishes us. It brings us together. It reminds us of who we used to be—and who we want to be. Put it all together and my daughter was right: True Fun is sunshine. In its purest form, it is a distillation of life’s energy, and the more often we bask in it, the more our lives will blossom in its light.

