I don’t know which of you have an aquarium at home—I don’t. But I have a good friend who does. One day when I visited him, he stood up and dripped something into the water. “What are you doing?” I asked. “The fish are sick, so I’m putting something in the water to treat them.” When the fish is sick, you change its environment so it can heal. When people are sick, their symptoms are treated—but otherwise, little changes. What can you change in your environment to help you heal?