It is, in this sense, called "Solomon's Seal," because it is the grand hieroglyphic of the Hermetic law: "As it is above, so it is below; as on the Earth, so in the sky." To continue this line of reasoning, or speculation, let us say, would lead us beyond the firm basis of human reason; it would escape the grasp of intellect, to which I am compelling this course of instruction to bend, but it would never take us beyond the real limits of the universe; yet, not to extend our investigations, we would ever remain in the lower trine, in the realms of effects, and lose sight entirely of the trine of spirit, from whence originated the force and potency in the form of matter. Therefore it is, that the science of Symbolism has been evolved and formulated. The symbols, the manifestations, are ever present, and the study of effects will, to a developed soul, suggest the cause, the nature of the principle back of it, as well as the law which would produce such effects. Such is the science of symbolism; and it bounds and binds back into a religio-philosophical system, each class of symbols and each plane of manifestation; as securely as modern savants have defined the province of chemistry, magnetism, and mathematics; and, so far, these bounds are useful. But it is only a question of time and space, after all, because, when resolved back, or, let us say, evolved up into their abstract principles; chemistry, magnetism, and mathematics, are purely arbitrary terms to express special features of the same one eternal thing or science--which is EXISTENCE; and it, in turn, is CONSCIOUSNESS; not that external consciousness of existence, not that knowledge and love of living, but that interior, conscious knowledge, which tells us why and how we exist, by what force and power we are sustained and permitted to obey and carry out the law of mediumship, reception and transmission, attraction and repulsion, spiritual and material, that ultimately blend and become as one, the double trine, and, united with the Divine Ego of its being, becomes complete; seven, the perfected number of form. The sum total, then, of all, and the value it may possess to the individual, is measured by his ability to perceive; for there is nothing external that is not in some sense mental, and there is nothing mental that is not in some sense spiritual. The sides of the triangle, physical, mental, and spiritual, and the apex where meet the mental and spiritual, forms the center of contact to higher trines in realms above. Where mind is not, there are no symbols, no ideas, no manifestations. The spirit has not yet reached that point in its evolutionary journey where it can yet crystallize its projected force, power, or ideas, into forms; for everything that is, is the outcome of Divine thought, and expresses within itself the symbol of its being. This is the arcana of the Law of Correspondences.