The life of Sarah was one hundred years and twenty years and seven years, the years of the life of Sarah. (Genesis 23:1) All of them were equally good. (Rashi) In which direction does your life move? To wherever you have placed its arrow. When your arrow points forever backward, always blaming the present on the past and scripting the future accordingly, then there is nothing but accumulated pain. What makes the story worth its struggle? But if your arrow points forward to an unfolding destiny, a grand story of an eternal people and a world approaching its perfection, then every pain becomes the cracking of a shell, every struggle...