Thus when a Dyak is out head-hunting, his wife or, if he is unmarried, his sister, must wear a sword day and night in order that he may always be thinking of his weapons; and she may not sleep during the day nor go to bed before two in the morning, lest her husband or brother should thereby be surprised in his sleep by an enemy.(31) In Laos when an elephant hunter is setting out for the chase he warns his wife not to cut her hair or oil her body in his absence; for if she cut her hair the elephant would burst the toils, if she oiled herself it would slip through them.(32) In all these cases (and similar instances might be multiplied indefinitely) an action is performed or avoided, because its performance is believed to entail good or bad consequences of a sort resembling the act itself. Sometimes the magic sympathy takes effect not so much through an act as through a supposed resemblance of qualities. Thus some Bechuanas wear a ferret as a charm because, being very tenacious of life, it will make them difficult to kill.(33) Others wear a certain insect, mutilated but living, for a similar purpose.(34) Other Bechuana warriors wear the hair of an ox among their own hair and the skin of a frog on their mantle, because a frog is slippery and the ox from which the hair has been taken has no horns and is therefore hard to catch; so the warrior who is provided with these charms believes that he will be as hard to hold as the ox and the frog.(35) Thus we see that in sympathetic magic one event is supposed to be followed necessarily and invariably by another, without the intervention of any spiritual or personal agency. This is, in fact, the modern conception of physical causation; the conception, indeed, is misapplied, but it is there none the less. Here, then, we have another mode in which primitive man seeks to bend nature to his wishes. There is, perhaps, hardly a savage who does not fancy himself possessed of this power of influencing the course of nature by sympathetic magic; a man-god, on this view, is only an individual who is believed to enjoy this common power in an unusually high degree. Thus, whereas a man-god of the former or inspired type derives his divinity from a deity who has taken up his abode in a tabernacle of flesh, a man-god of the latter type draws his supernatural power from a certain physical sympathy with nature. He is not merely the receptacle of a divine spirit. His whole being, body and soul, is so delicately attuned to the harmony of the world that a touch of his hand or a turn of his head may send a thrill vibrating through the universal framework of things; and conversely his divine organism is acutely sensitive to such slight changes of environment as would leave ordinary mortals wholly unaffected. But the line between these two types of man-god, however sharply we may draw it in theory, is seldom to be traced with precision in practice, and in what follows I shall not insist on it.