How do we know we are hearing God’s voice and not merely the voice of our own aspirations, desires that themselves contain godly ambition and selfishness comingled? How do we sort God’s voice out of the clamor of so many messages? In Wishful Thinking, Frederick Buechner writes, “There are all different kinds of voices calling to you, all different kinds of work. And the problem is finding out which is the voice of God, rather than of society, say, or the super-ego or self-interest.