Seeing the rich and diverse spectrum of human beings this world has to offer is simply wonderful. No two people are anything alike. Each and every one of us is unique and different from all the others. That even applies to you. There never was, and never will be, another you. Seeing other humans at different stages of their lives can make you recall similar snippets of your own life… or imagine future snippets yet to come, whether happy or sad. This reflective nature is something to harness. You can learn so much about yourself by watching others.