553. What is the effect of the formulas and practices by the aid of which certain persons profess to be able to control the wills of spirits?
"Their only effect is to render such persons ridiculous, if they really put faith in them; and, if they do not, they are rogues who deserve to be punished. All such formulas are mere jugglery; there is no 'sacramental word,' no cabalistic sign, no talisman, that has any power over spirits; for spirits are attracted by thought and not by anything material."
-- Have not cabalistic formulas been sometimes dictated by spirits?
"Yes; there are spirits who give you strange signs and words, and prescribe certain acts, with the aid of which you perform what you call 'conjurations;' but you may be very sure that such spirits are making game of you, and amusing themselves with your credulity."