This Power has in each case accomplished the miraculous, the humanly impossible...there has been a revolutionary change in their way of living and thinking. In the face of collapse and despair, in the face of the total failure of their human resources, they found that a new power, peace, happiness, and sense of direction flowed into them. When many hundreds of people are able to say that the consciousness of the Presence of God is today the most important fact of their lives, they present a powerful reason why one should have faith.

Big Book, pages 50 & 51