Your mind is the controller of your feelings. By your believing that your pain is not physical and it is just a fundamental disturbance of the energy produced by your mind and when disturbed by action is a disruption of its normality. The body is reproducing constantly and with a concentration and relaxation the energy will soon become normal again and the pain will go away.
Now is this true? I know that times I do not give in to pain, it will go away, so is the because I have faith and changed my energy produced by my mind? I have to assume that it is, at least in my case.
You have to be careful, regardless, because some pains are not to be put off until another day. I am not a true believer of Faith Healing, Witch Doctors, etc. mainly because a person can believe and still have some hesitation, therefore, it may not work
Train your mind to understand your mind. The mind will not betray you, but you have to trust it in what it is telling you.