The Tarot cards were entrusted by the illumined hierophants of the Mysteries into the keeping of the foolish and the ignorant, thus becoming playthings--in many instances even instruments of vice. Man's evil habits therefore actually became the unconscious perpetuators of his philosophical precepts. "We must admire the wisdom of the Initiates," writes Papus, "who utilized vice and made it produce more beneficial results than virtue." Does not this act of the ancient priests itself afford proof that the entire mystery of the Tarot is wrapped up in the symbolism of its zero card? If knowledge was thus entrusted to fools, should it not be sought for in this card?