The linguistic theory of the Kabbala, as it is explained in the writings of the Kabbalists of the 13th century—or at least basically implied in them—comes to rest upon a combination of the above-mentioned interpretations of the Book of Yetsira with the doctrine of the Name of God as a basis of that language. What is essentially new in this is the way in which the scope and range of a divine language—as understood by the Kabbalists—is brought into unique prominence over and beyond the realm of created man. In the Book of Yetsira there could still be some doubt as to whether the ten Sefiroth and the 22 letters were themselves thought of as created; and as we have seen, there is even considerable evidence in favor of this conception. In the doctrines and teachings of the Kabbalists, however, this is no longer the case. The ten original numbers have become ten emanations of the divine fullness of being. Where these are concerned one can only now talk in terms of creation in a meta-phorical sense. In the Sefiroth of the Kabbalists, God manifests himself in ten spheres or aspects of his activity. The 22 letters are themselves part and parcel of this area; they are configurations of the divine energies, which are themselves grounded in the world of the Sefiroth, and whose appearance in the world either beyond, outside or beneath this realm of the divine emanations is simply a gradual process of de-refinement and an intensified crystallization of those innermost signs of all things, as they correspond to the progressively evolving and increasingly condensed media of the creation. All creation, from the world of the highest angel to the lower realms of physical nature, refers symbolically to the law which operates within it—the law which governs in the world of the Sefiroth. In everything something is reflected—one might just as well say—from the realms which lie in the center of it. Everything is transparent, and in this state of transparency everything takes on a symbolic character. This means that every thing, beyond its own meaning, has something more, something which is part of that which shines into it or, as if in some devious way, that which has left its mark behind in it, forever. The Book of Yetsira was still far removed from this type of interpretation. For the Kabbalists, however, the Sefiroth and the letters, in which the word of God is explained, or which constitute the word of God, were simply two different methods in which the same reality might be represented in a symbolic manner. In other words: whether the process of the manifestation of God, his stepping outside under the symbol of the light, and his diffusion of knowledge and reflection is what is represented, or whether it is to be understood to be the activeness of the divine language, of the self-differentiating word of the creation or even of the self-explanatory name of God. In the last analysis, this, for the Kabbalists, is no more than a question of the choice between symbolic structures which are in themselves equally arranged—the symbolism of light and the symbolism of language.