Pray big prayers. And then listen to how God responds. Prayer--direct conversation with God--is one of the most powerful tools a Christian has to make change in the world and in ourselves. And yet, so many of us don't know how to pray. Our minds wander. Our hearts aren't aligned with our thoughts. We don't know what to say or what to ask for. Bil Cornelius, author of USA Today bestseller I Dare You to Change and pastor...