Buechner On Vocation

There are all different kinds of voices calling you to all different kinds of work, and the problem is to find out which is the voice of God rather than of Society, say, or the Superego, of Self-Interest. By and large a good rule for finding this out is this: The kind of work God usually calls you to is the kind of work (a) that you need most to do and (b) that the world most needs to have done … The place God calls you to is the place where your deep gladness and the world’s deep hunger meet. — Frederick Buechner, Wishful Thinking: A Theological ABC

(emphasis mine)