Divining Rod
I believe that the imagination is the principal motive force in those who use the divining rod; but whether it is so solely, I am unable to decide. The powers of nature are so mysterious and inscrutable that we must be cautious in limiting them, under abnormal conditions, to the ordinary laws of experience.
Positions of the Hands on Divining Rods
From “Lettres qui découvrent l’Illusion des Philosophes sur la Baguette.” Paris, 1693