I think this song is about acceptance, and how it tends to fly over people's heads. The story follows: God creates everything and invites his people (Christians) to a picnic. Of course, people have all sorts of questions about Heaven, but that's not a lesson God wants them to learn. Instead, he tries to teach them about all the different people in the world. He tells a story of a kid who finds out he is unique, but is rejected by other people who don't understand it. After telling the story, people ask God if his story was a parable or a joke. This line represents two kinds of people in the world - the people who mock difference (homophobes, ableists, etc) and the people who only value different people as "inspirations". These two types of people are all too common in the real world. When God shuffles his feet, he becomes distant from his creation, these people that are always going to be self-righteous and ignorant.
