V. White and Black Magic

And now take a serious look at this story and ask yourself what could protect most people from these procedures that I have mentioned, and through which man could certainly be led to the mastery of black magic powers. Selfishness is a very good means of protection against it. Not everyone will be able to overcome themselves to cut into living flesh; most people would faint, and fainting is nothing more than an expression of selfishness. So, in its physical effect, it is a good means of being deterred from practising black magic. It is also difficult to become a Bluebeard; most people are protected from that by their perfectly healthy selfishness; it acts as a barrier to putting oneself in the shoes of the means of acquiring black magic powers.