Four and a half years ago, I was thinking about someone I loved very deeply, who was suffering terrible pain that I felt I couldn't do anything to ease. And I was thinking about my own pain, past and present. I was thinking of losses I had experienced, and some of my darkest moments of doubt and despair. And I was thinking about many others I knew or had known, who struggled. And some who lost the struggle. Not knowing what else to do with my thoughts and my feelings, I wrote a letter to everyone in the world.