Spiritually speaking...What does the DSM say about adults who believe in fairy tales?

And science is the answer right? Isn't science predicated upon the cyclical process of hypothesis? That is to say an umption is made, a test is executed, the results are recorded and the theorem either evolves or is dispelled. It seems atheism only gets as far as the hypothesis as to the notion of God's existence yet provides no qualitative data to either prove or disprove His existence. Furthermore, isn't one of the tenants of true science to explore ALL possibilities? Why is it that science stubbornly refuses to explore the idea of God?