Many think that it is some deformity of the body, a curve in the spine or a cavity in the brain, that affects the mind; few realize that very often the mind produces an irregularity in the spine or in the brain, thereby causing an illness. The ordinary point of view regards an illness as a physical disorder which can be cured by means of material remedies: Then there is another point of view: that of people who think deeply and who say that by not taking notice of an illness, or by suggesting to oneself that one is well, one can be restored to health.