41 inclinations, tendencies, appetites, must be detected, examined, judged by the standard of whether they help or hinder the main purpose, and treated accordingly. Vigilance and courage are obviously required. I was about to add self-denial, in deference to conventional speech; but how could I call that self-denial which is merely denial of those things which hamper the self? It is not suicide to kill the germs of malaria in one's blood. Now there are very great difficulties to be overcome in the training of the mind. Perhaps the greatest is forgetfulness, which is probably the worst form of what theliuddhists call ignorance. Special practices fortraining the memory may be of some use as a preliminary for persons whose memory is naturally poor. In any case the Magical Record prescribed for Probationers by the A. -.A.-, is useful and necessary. Above all the practices of Liber III must be done again and again, for these practices develop not only vigilance but those inhibiting centres in the brain which are, according to some psychologists, the mainspring of the mechanism by which civilized man has raised himself above the savage. So far it has been spoken, as it were, in the negative. Aaron's rod has become a serpent, and swallowed the serpents of the other Magicians; it is now necessary to turn it once more into a rod.^ ' As everyone knows, the word used in Exodus for a Rod of Almond is iprn n!:n.