It is also to be borne in mind that a classification is a system whose parts are arranged according to a hierarchy. There are dominating members and others which are subordinate to the first; species and their distinctive properties depend upon classes and the attributes which characterize them; again, the different species of a single class are conceived as all placed on the same level in regard to each other. Does someone prefer to regard them from the point of view of the understanding? Then he represents things to himself in an inverse order: he puts at the top the species that are the most particularized and the richest in reality, while the types that are most general and the poorest in qualities are at the bottom. Nevertheless, all are represented in a hierarchic form. And we must be careful not to believe that the expression has only a metaphorical sense here: there are really relations of subordination and co-ordination, the establishment of which is the object of all classification, and men would never have thought of arranging their knowledge in this way if they had not known beforehand what a hierarchy was. But neither the spectacle of physical nature nor the mechanism of mental associations could furnish them with this knowledge. The hierarchy is exclusively a social affair. It is only in society that there are superiors, inferiors and equals. Consequently, even if the facts were not enough to prove it, the mere analysis of these ideas would reveal their origin. We have taken them from society, and projected them into our conceptions of the world. It is society that has furnished the outlines which logical thought has filled in.
But these primitive classifications have a no less direct interest for the origins of religious thought.
They imply that all the things thus classed in a single clan or a single phratry are closely related both to each other and to the thing serving as the totem of this clan or phratry. When an Australian of the Port Mackay tribe says that the sun, snakes, etc., are of the Yungaroo phratry, he does not mean merely to apply a common, but none the less a purely conventional, nomenclature to these different things; the word has an objective signification for him. He believes that "alligators really _are_ Yungaroo and that kangaroos are Wootaroo. The sun _is_ Yungaroo, the moon Wootaroo, and so on for the constellations, trees, plants, etc."[453] An internal bond attaches them to the group in which they are placed; they are regular members of it. It is said that they belong to the group,[454] just exactly as the individual men make a part of it; consequently, the same sort of a relation unites them to these latter. Men regard the things in their clan as their relatives or associates; they call them their friends and think that they are made out of the same flesh as themselves.[455] Therefore, between the two there are elective affinities and quite special relations of agreement. Things and people have a common name, and in a certain way they naturally understand each other and harmonize with one another. For example, when a Wakelbura of the Mallera phratry is buried, the scaffold upon which the body is exposed "must be made of the wood of some tree belonging to the Mallera phratry."[456] The same is true for the branches that cover the corpse. If the deceased is of the Banbe class, a Banbe tree must be used. In this same tribe, a magician can use in his art only those things which belong to his own phratry;[457] since the others are strangers to him, he does not know how to make them obey him. Thus a bond of mystic sympathy unites each individual to those beings, whether living or not, which are associated with him; the result of this is a belief in the possibility of deducing what he will do or what he has done from what they are doing. Among these same Wakelbura, when a man dreams that he has killed an animal belonging to a certain social division, he expects to meet a man of this same division the next day.[458] Inversely, the things attributed to a clan or phratry cannot be used against the members of this clan or phratry. Among the Wotjobaluk, each phratry has its own special trees. Now in hunting an animal of the Gurogity phratry, only arms whose wood is taken from trees of the other phratry may be used, and _vice versa_; otherwise the hunter is sure to miss his aim.[459] The native is convinced that the arrow would turn of itself and refuse, so to speak, to hit a kindred and friendly animal.