Yesterday I had the pleasure of meeting a man who suffered a traumatic brain injury and has defied all odds. He gave me a piece of wisdom that I should pass on. People speak of grace and mercy but do you understand the difference? I like his explanation: Grace is when you put your money in a machine to buy a soda and get your soda plus your money back. It is something good that is unexpected. Mercy is when you unknowingly (or knowingly) do something wrong and someone chooses to not punish you.