This reminds me of a book I just read - The Illumination by Kevin Brockmeier. The illumination itself was how people's wounds would show up as light in their body - internal or external, the painful spot (or cancer or whatever was wrong) would show up as a light. The book was from several people's view points on how their life changed because of this and the one thing they all had in common was a book that a wife made of 'I love you's' left by her DH every morning.
I think it's a great idea! Thanks for sharing it, Tina :)