Proof that kindness multiplies

I assisted someone yesterday who was stranded in a parking lot after running out of gas. Seeing the expression on her face, I immediately empathized because I have been in that difficult situation myself, so I proceeded to put ten dollars toward her fuel. I went outside and told her she was all set.
She was about ready to cry. I told her it was all set. She doesnt owe me anything. She returned the very next day with this, which serves as proof that helping others is truly rewarding. I honestly did not expect to be repaid, but she provided this wonderful note which after reading I was in tears! I will certainly be on the lookout for Nikki at Radikal Teas in the future!