Earlier in the year, when I was still busking outside, I received the following note in my case:
"I became homeless a month ago when I ran away from my partner and don't have any money to give you. I just wanted you to know that your music gave me so much enjoyment this morning, at a time I needed it so much."
He did sign his name and his e-mail address; I never wrote to him. But I'm glad to have helped, even a little.