It has been both an ancient and spiritual question, and today a question of science: What are these miraculous events? Where do they come from? And what do they mean? If miracles are real, are they divine intervention and what is the role of spirituality, religion and prayer? This 4-part series explores and investigates the many answers to these questions through interviews with theologians, historians, experts, actual witnesses and visits to the locations where it is believed some of the most beautiful and profound miracles occurred.