Note (return) — LECTURE XVII
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Such exercises of ghostly power for the healing of the sick and the improvement of the weather are, when well directed and efficacious, wholly beneficial. But ghostly power is a two-edged weapon which can work evil as well as good to mankind. In fact it can serve the purpose of witchcraft. The commonest application of this pernicious art is one which is very familiar to witches and sorcerers in many parts of the world. The first thing the wizard does is to obtain a fragment of food, a bit of hair, a nail-clipping, or indeed anything that has been closely connected with the person of his intended victim. This is the medium through which the power of the ghost or spirit is brought to bear; it is, so to say, the point of support on which the magician rests the whole weight of his infernal engine. In order to give effect to the charm it is very desirable, if not absolutely necessary, to possess some personal relic, such as a bone, of the dead man whose ghost is to set the machinery in motion. At all events the essential thing is to bring together the man who is to be injured and the ghost or spirit who is to injure him; and this can be done most readily by placing the personal relics or refuse of the two men, the living and the dead, in contact with each other; for thus the magic circuit, if we may say so, is complete, and the fatal current flows from the dead to the living. That is why it is most dangerous to leave any personal refuse or rubbish lying about; you never can tell but that some sorcerer may get hold of it and work your ruin by means of it. Hence the people are naturally most careful to hide or destroy all such refuse in order to prevent it from falling into the hands of witches and wizards; and this sage precaution has led to habits of cleanliness which the superficial European is apt to mistake for what he calls enlightened sanitation, but which a deeper knowledge of native thought would reveal to him in their true character as far-seeing measures designed to defeat the nefarious art of the sorcerer.621