In the case of any mental unbalanced condition, the restoration of balance is purely mental. A change of thought from negative to positive will cure any mental ailment, and a physical unbalance, which is a reaction of the mental unbalance, will also become balanced. Such a Mind healing has no relation whatsoever to faith or belief. It is purely cause and effect working in accordance with Cosmic Law.
A physical abnormality, whether it be a broken bone, a cancer, a cut on the head, a gunshot wound, a paralysis from blood clots on the brain, or a misshapen body, requires physical action to aid healing. One might just as well ask God in all faith and belief to mend a broken spoke in an automobile wheel as to ask God to cure a deformed foot without intelligent action on the part of people.