Now to confront our opening question. Can there be any people who confound sacredness with uncleanness? We have seen how the idea of contagion is at work in religion and society. We have seen that powers are attributed to any structure of ideas, and that rules of avoidance make a visible public recognition of its boundaries. But this is not to say that the sacred is unclean. Each culture must have its own notions of dirt and defilement which are contrasted with its notions of the positive structure which must not be negated. To talk about a confused blending of the Sacred and the Unclean is outright nonsense. But it still remains true that religions often sacralise the very unclean things which have been rejected with abhorrence. We must, therefore, ask how dirt, which is normally destructive, sometimes becomes creative.