Partway through folding 1,000 paper cranes, I mentioned to a friend of mine that I was working on this project. Eventually, I folded 2,000 paper cranes, wishing for better physical and mental health. I think I achieved both. My friend had mentioned something that stuck with me for years; paraphrased, he said: If I’m not thinking about [better health] while folding the paper crane, am I really working toward achieving that goal? Imbue things with positive thoughts.