The 15" century greatest physician and Alchemist, Paracelsus, believed that various physical ailments begin with stress and anxiety, a result medically proven to be true. However, mystics of all ages explain that these adverse elements originate in resentment, fear, jealousy, and evil-intention of those dark emotions. He states that faith would cure all diseases. Faith is an inner conviction and sacred contract between micro/macro cosmos. It is a Divine matrix, a state of certainty, of superassurance. Faith is a divine fountain of energy. Many nations still actively employ various methods of healing practices that include sacred Prayer, Mantras, and certain decrees to alleviate various elements in the body.
According to the Divine Law, almost all diseases are visualized in one's mind's eye first, before it is manifested in a physical reality, since the universal energy follows one's idea. Your consistent imagery becomes the crystallized reality. All the prayers in the world cannot heal or effectively support the idea of ill health as "necessary," or "unavoidable." Your faith (belief) has a manifesting power; it will always be manifesting on the things in which you hold unbroken faith.