Besides these human gods who are gods by descent from deified ancestors, there is another class of gods who are gods by inspiration or indwelling of the divine spirit, that is to say of some ghost or god who temporarily or permanently inhabits the body of a living man. The germ-idea of such divine possession we may see in the facts of epilepsy, catalepsy, dream, and madness. In all such cases of abnormal nervous condition it seems to primitive man, as it still seemed to the Jews of the age of the Gospels, that the sufferer is entered or seized upon by some spirit, who bodily inhabits him. The spirit may throw {229}the man down, or may speak through his mouth in strange unknown tongues; it may exalt him so that he can perform strange feats of marvellous strength, or may debase him to a position of grovelling abjectness. By fasting and religious asceticism men and women can even artificially attain this state, when the god speaks through them, as he spoke through the mouth of the Pythia at Delphi. And fasting is always one of the religious exercises of god-possessed men, priests, monks, anchorites, and ascetics in general. Where races have learnt how to manufacture intoxicating drinks, or to express narcotic juices from plants, they also universally attribute the effects of such plants to the personal action of an inspiring spirit--an idea so persistent even into civilised ages that we habitually speak of alcoholic liquors as spirits. Both these ways of attaining the presence of an indwelling god are commonly practised among savages and half-civilised people. When we recollect how we saw already that ancestral spirits may descend from time to time into the skulls that once were theirs, or into the clay or wooden images that represent them, and there give oracles, we shall not be surprised to find that they can thus enter at times into a human body, and speak through its lips, for good or for evil. Indeed, I have dwelt but little in this book on this migratory power and this ubiquitousness of the spirits, because I have desired to fix attention chiefly on that primary aspect of religion which is immediately and directly concerned with Worship; but readers familiar with such works as Dr. Tylor’s and Mr. Frazer’s will be well aware of the common power which spirits possess of projecting themselves readily into every part of nature. The faculty of possession or of divination is but one particular example of this well-known attribute. The mysteries and oracles of all creeds are full of such phenomena.