366. (3) As life is in its first elements, so it is in the whole and in every part of that whole. For this to be perceived, we must say where in the brain these first elements are, and how their derivative elements are formed. Where these first elements are in the brain is plain from the study of anatomy. From this study we know that the brain consists of two structures, and that these are continued from the head into the spinal column. We know, too, that these structures consist of two substances, called gray matter and white matter, and that the gray matter consists of countless little gland-like constituents, and the white matter of countless fiber-like ones. Now because these little glandular constituents form the heads of the fibrous ones, they are also their first elements. For fibers commence from them and then continue on, gradually bundling themselves into nerves, and having been bundled together or formed into nerves, they descend to the sense organs in the face and to the motor organs in the body and form them. Consult any expert in the science of anatomy and you will have it confirmed. [2] The gray matter or glandular substance forms the outer layer of the cerebrum, and the outer layer of the corpora striata as well, from which the medulla oblongata proceeds, and it forms the core of the cerebellum, and also the core of the spinal cord. The white matter or fibrous substance, on the other hand, everywhere commences and continues on from that, and from it issue the nerves, from which arise all the constituents of the body. Anatomical examination shows this to be the case. People who are acquainted with these observations, either from their study of anatomy or from the testimony of others who are engaged in that study, can see that the first elements of life lie nowhere else than where the fibers have their beginnings, and that it is not possible for the fibers to issue forth of themselves, but must do so from those first elements. [3] These first elements or initial forms which look like little glands are almost beyond number. Their multitude may be likened to the multitude of stars in the universe; and the multitude of little fibers issuing from them may be likened to the multitude of rays emanating from the stars and conveying their heat and light to the planets. The multitude of these little glands may also be likened to the multitude of angelic societies in the heavens, which are also beyond number, and similarly arranged, I have been told; and the multitude of little fibers issuing from those little glands may be likened to the spiritual truths and goods which similarly stream down like rays from those societies. So it is that the human being is a kind of universe, and a kind of heaven in miniature form, as we have said and shown here and there above. It can be seen from this that as life is in its first elements, so it is in its derivative elements, or that as life is in its first forms in the brain, so it is in the forms arising from it in the body.