Music is the most effective delivery system for feelings—love, joy, sadness, glory. The early Church Fathers knew that music also has power over minds, and they used that power to maximum effect, writing hymns through which the early Christians would learn, retain, and spread the Gospel message. In How the Choir Converted the World, best-selling author Mike Aquilina demonstrates how the earliest Christians used music to transform a world that desperately needed transforming. As Aquilina suggests, “If we did it once, we can do it again.”