Each of us has a purpose for living beyond our own survival and pleasure. Every individual is like a thread in a beautiful tapestry with a vital contribution to make, not only to the sustenance of life as we know it, but in the creation and development of more beneficial expressions of life.
I think books are like people, in the sense that they'll turn up in your life when you most need them. I firmly believe there are books whose greatness actually enables you to live, to do something. And sometimes, human beings need story and narrative more than they need nourishment and food.