The spirit is the master; imagination the tool, and the body the plastic material ...The power of the imagination is a great factor in medicine. It may produce diseases in man and in animals, and it may cure them ..Ills of the body may be cured by physical remedies or by the power of the spirit acting through the soul.
ParacelsusWhat the eyes perceive in herbs or stones or trees is not yet a remedy; the eyes see only the dross.
Paracelsus