I read an article in Real Simple magazine recently that was the response to this question. Individuals had submitted their answers, and they ranged from "telling me I had lipstick on my teeth" to "donating a heart so I could have a transplant."
In the world today where we wonder if nuclear war is about to break out or if race riots are starting again, I thought this article was a beautiful way to derail the journey of darkness and get on board the peace train.
Ps. A stranger told us about a waterfall back in the woods that we had driven by many times, but not known to look for. That was very kind!