ืOne day, I imagined a city where there was only one tree left. The tree was still beautiful, but very much alone, surrounded by buildings, in the center of the city. Many people were getting sick, and most doctors did not know how to deal with the illness. But one very good doctor knew the causes of the sickness and gave this prescription to each patient: "Every day, take the bus and go to the center of the city to look at the tree. As you approach it, practice breathing in and out, and when you get there, hug the tree, breathing in and out for fifteen minutes, while ou look at the tree, so green, and smell its bark, so fragrant, If you do that, in a few weeks you will feel much better.