There was a teacher who had all her students blow up a balloon and write their name on their own balloon, then she tossed them around the classroom, mixing them up. She then gave her students 5 minutes to find their balloon. After the 5 minutes, no one was able to find their own. The teacher then told everyone to pick up the balloon to their left and hand it to the person who it belonged to. Within 2 minutes, everyone had their own balloon. She then told them, "Imagine these balloons represent your happiness. If we only spend time looking for our own, we won't find it. But if we care about other's happiness, we will all find ours quicker than we could imagine."