But if a purely hierarchic distinction is a criterium at once too general and too imprecise, there is nothing left with which to characterize the sacred in its relation to the profane except their heterogeneity. However, this heterogeneity is sufficient to characterize this classification of things and to distinguish it from all others, because it is very particular: _it is absolute_. In all the history of human thought there exists no other example of two categories of things so profoundly differentiated or so radically opposed to one another. The traditional opposition of good and bad is nothing beside this; for the good and the bad are only two opposed species of the same class, namely morals, just as sickness and health are two different aspects of the same order of facts, life, while the sacred and the profane have always and everywhere been conceived by the human mind as two distinct classes, as two worlds between which there is nothing in common. The forces which play in one are not simply those which are met with in the other, but a little stronger; they are of a different sort. In different religions, this opposition has been conceived in different ways. Here, to separate these two sorts of things, it has seemed sufficient to localize them in different parts of the physical universe; there, the first have been put into an ideal and transcendental world, while the material world is left in full possession of the others. But howsoever much the forms of the contrast may vary,[69] the fact of the contrast is universal. This is not equivalent to saying that a being can never pass from one of these worlds into the other: but the manner in which this passage is effected, when it does take place, puts into relief the essential duality of the two kingdoms. In fact, it implies a veritable metamorphosis. This is notably demonstrated by the initiation rites, such as they are practised by a multitude of peoples. This initiation is a long series of ceremonies with the object of introducing the young man into the religious life: for the first time, he leaves the purely profane world where he passed his first infancy, and enters into the world of sacred things. Now this change of state is thought of, not as a simple and regular development of pre-existent germs, but as a transformation _totius substantiae_--of the whole being. It is said that at this moment the young man dies, that the person that he was ceases to exist, and that another is instantly substituted for it. He is re-born under a new form. Appropriate ceremonies are felt to bring about this death and re-birth, which are not understood in a merely symbolic sense, but are taken literally.[70] Does this not prove that between the profane being which he was and the religious being which he becomes, there is a break of continuity?