Moreover, if this indifference for the divine is developed to such a point in Buddhism and Jaïnism, it is because its germ existed already in the Brahmanism from which the two were derived. In certain of its forms at least, Brahmic speculation ended in "a frankly materialistic and atheistic interpretation of the universe."[55] In time, the numerous divinities which the people of India had originally learned to adore, came to merge themselves into a sort of principal deity, impersonal and abstract, the essence of all that exists. This supreme reality, which no longer has anything of a divine personality about it, is contained within man himself, or rather, man is but one with it, for nothing exists apart from it. To find it, and unite himself to it, one does not have to search some external support outside himself; it is enough to concentrate upon himself and meditate. "If in Buddhism," says Oldenberg, "the proud attempt be made to conceive a deliverance in which man himself delivers himself, to create a faith without a god, it is Brahmanical speculation which has prepared the way for this thought. It thrusts back the idea of a god step by step; the forms of the old gods have faded away, and besides the Brahma, which is enthroned in its everlasting quietude, highly exalted above the destinies of the human world, there is left remaining, as the sole really active person in the great work of deliverance, man himself."[56] Here, then, we find a considerable portion of religious evolution which has consisted in the progressive recoil of the idea of a spiritual being from that of a deity. Here are great religions where invocations, propitiations, sacrifices and prayers properly so-called are far from holding a preponderating place, and which consequently do not present that distinctive sign by which some claim to recognize those manifestations which are properly called religious. But even within deistic religions there are many rites which are completely independent of all idea of gods or spiritual beings. In the first place, there are a multitude of interdictions. For example, the Bible orders that a woman live isolated during a determined period each month;[57] a similar isolation is obligatory during the lying-in at child-birth;[58] it is forbidden to hitch an ass and a horse together, or to wear a garment in which the hemp is mixed with flax;[59] but it is impossible to see the part which belief in Jahveh can have played in these interdictions, for he is wholly absent from all the relations thus forbidden, and could not be interested in them. As much can be said for the majority of the dietetic regulations. These prohibitions are not peculiar to the Hebrews, but they are found under diverse forms, but with substantially the same character, in innumerable religions.