Belief creates biology.
To preserve permanent good health, the state of mind must be taken into consideration.
It would take almost 200 years for that principle was finally accepted by most health and medical experts.
Even the mind depends so much on temperament and the disposition of one's bodily organs that, if it is possible to find a way to make people generally more wise and more skilful than they have been in the past, I believe that we should look for it in medicine. It is true that medicine as it is currently practiced contains little of much use.
What a doctor or healer tells you is a reflection of the beliefs and expectations you hold. Change your beliefs and you change the prognosis. Who is the doctor? The mind of the patient.
I trained in medicine after pursuing an academic career in the humanities, mainly because of my interest in the relationship between mind and body, and between mind and brain.
Just as you ought not to attempt to cure eyes without head or head without body, so you should not treat body without soul.
I have two doctors, my left leg and my right. When body and mind are out of gear (and those twin parts of me live at such close quarters that the one always catches melancholy from the other) I know that I shall have only to call in my doctors and I shall be well again.
Medication is of course important but do not conclude that a pill dissolving in your stomach is necessarily more powerful than a healing thought in your mind.
Seventy per cent of all patients who come to physicians could cure themselves if they got rid of their fears and worries.