One must constantly keep in mind the ambivalence of every symbol. Insistance on either one or the other of the contradictory attributions inherent in a symbol is simply a mark of spiritual incapacity; and it is constantly happening, because of prejudice. It is the simplest test of initiation that every symbol is understood instinctively to contain this contradictory meaning in itself.
— Aleister Crowley, Book of Thoth, Fool
Tarot workshop at TABI in July 2010