Now if we multiply this latter period by ten and divide the product by six, we shall have the dividend 4,320,000, which we have already identified as the value in years of the Maha-yuga or Great Age. This means that the entire revolution of the Earth’s axis occupies a period which is ten-sixths of the whole period of cosmic activity known as the Manvantara. Hence we have the series 1, 2, 3, 4 equals 10, and the series 6, 12, 18, 24 equals 60, which we have already shown to be the basis of the Yugas composing the Maha-yuga. This value of 60 has therefore a cosmical significance.[1] It is geometrically derived from the interlacing of two equilateral triangles, commonly known as the Seal of Solomon, and esoterically invested with the symbolical value of the universe in manifestation of Spirit (male, positive) and Matter (female, negative), and also the Out-breathing and In-breathing of the Great Breath of Life. Water crystallizes at an angle of 60°, and the ancient teaching of Pythagoras, Plato, Thales and other Initiates, was that Water was the basic element of Nature. By the elements they did not understand the chemical elements known to modern Chemistry, but the Four states of Matter, the Igneous, Gaseous, Fluidic and Mineral, which have their correspondences in the Four Principles of the human constitution, Spirit, Mind, Soul and Body, of which the first two are formless or immaterial, and the last two formative or material. Thus we have the higher trial of Intelligence, Life and Substance, with their multiplex manifestations in the lower triad of Consciousness, Force and Matter. For there is only One Intelligence, One Life and One Substance, and it is with the manifestations of these in the lower world that Science is concerned. Wisdom has no other concern than to discern the Unity in Diversity and to cognize all in terms of the One Being. [Illustration: Figure 7.] Another very interesting cosmical cycle is that of the Eclipse Period. The initial value of this is 18 years 11 days 7 hours 42 mins. 35 secs., being the mean interval between an eclipse and its recurrence. In three cycles the eclipse will have moved through one sign of the zodiac, and in twelve times three or thirty-six cycles it will have moved through the entire zodiac and come again to the place of the first occurrence. Then 18 × 3 × 12 or 648 years, to which add one for the precessional increment and obtain 649 years as the Eclipse Cycle, after which the phenomena recur in the same part of the zodiac. Thus I find an eclipse of the Sun in June, A.D. 1277, and the same eclipse in June, A.D. 1926, another in June 1295, which recurs in June 1944.