Thus, the “Robes” stand for the noumenon of undifferentiated Cosmic Matter. It is not matter as we know it, but the spiritual essence of matter, and is coëternal and even one with Space in its abstract sense. Root‐Nature is also the source of the subtile invisible properties in visible matter. It is the Soul, so to say, of the One Infinite Spirit. The Hindûs call it Mûlaprakriti, and say that it is the primordial Substance, which is the basis of the Upâdhi or Vehicle of every phenomenon, whether physical, psychic or mental. It is the source from which Âkâsha radiates. By the “Seven Eternities,” æons or periods are meant. The word Eternity, as understood in Christian theology, has no meaning to the Asiatic ear, except in its application to the One Existence; nor is the term “sempiternity,” the eternal only in futurity, anything better than a misnomer.(55) Such words do not and cannot exist in philosophical metaphysics, and were unknown till the advent of ecclesiastical Christianity. The Seven Eternities mean the seven periods, or a period answering in its duration to the seven periods, of a Manvantara, extending throughout a Mahâkalpa or “Great Age” (100 Years of Brahmâ), making a total of 311,040,000,000,000 of years; each Year of Brahmâ being composed of 360 Days, and of the same number of Nights of Brahmâ (reckoning by the Chandrâyana or lunar year); and a Day of Brahmâ consisting of 4,320,000,000 of mortal years. These Eternities belong to the most secret calculations, in which, in order to arrive at the true total, every figure must be 7x, x varying according to the nature of the cycle in the subjective or real world; and every figure relating to, or representing, the different cycles—from the greatest to the smallest—in the objective or unreal world, must necessarily be multiples of seven. The key to this cannot be given, for herein lies the mystery of esoteric calculations, and for the purposes of ordinary calculation it has no sense. “The number seven,” says the _Kabalah_, “is the great number of the Divine Mysteries”; number ten is that of all human knowledge (the Pythagorean Decad); 1,000 is the number ten to the third power, and therefore the number 7,000 is also symbolical. In the Secret Doctrine the figure 4 is the male symbol only on the highest plane of abstraction; on the plane of matter the 3 is the masculine and the 4 the feminine—the upright and the horizontal in the fourth stage of symbolism, when the symbols become the glyphs of the generative powers on the physical plane. 2. TIME WAS NOT, FOR IT LAY ASLEEP IN THE INFINITE BOSOM OF DURATION.