Having experienced the sudden and early deaths of friends and family, and being 67, I remember reading a letter by a soldier during the Civil War, to his mother, with a line in it that said, "The longer I live the more convinced am I that there is no real happiness in this world without the hope of heaven".
I am not a religious person in the conventional, "God fearing", fundamentalist way, but this line written by someone facing a life and death situation every day, is something that I will remember.