[I originally posted the following as an addendum to The Yugas & the Precession of the Equinoxes, but figured these excerpts/this topic deserved its own page, for easier reference. I have added an excerpt about the 432,000 radius of the Sun.]
From PNB's The Gnostic Circle (1975): 'Since the Kaliyuga is only the measurement, we begin the count of the Yugas with Dwapara, two times Kali, 864,000; after this we pass into Treta, three measures of Time; then Satya, four measures. There are then the numbers 4, 3, and 2, which are the very digits of the kali measurement: 432,000. They are, as well, the most important numbers in the structure of symbols: 2 equals the Line, 3 equals the Triangle, and 4 equals the Square. With these it is possible to construct the zodiac because 2, or the Line, is the division of feminine and masculine signs, 3, the Triangle, represents the energy flows of Creation, Preservation and Destruction (Cardinal, Fixed and Mutable), and 4, or the Square, is the division of the elements, Fire, Earth, Air and Water. Therliefore these numbers, 4-3-2, are the basic numbers of the Zodiac, as well as the measure of Time, and the zodiac is in effect the Great Timepiece; 4 + 3 + 2 equal 9, the number that absorbs all others.
'This discovery brings to mind the Sphinx of Thebes, the Maiden with the body of a Lion, and the riddle she gave Oedipus to solve, based on these very numbers, 4, 3, 2. The symbol of the Sphinx has long contained for man the key to the mystery of his evolution on Earth.' -- TGC, p. 63 [bold and red emphasis added]
'... Kaliyuga is only the measurement of Time. For this reason, therefore, the count [of the yugas] does not actually begin with Kaliyuga, 432,000 seconds of degrees of longitude--equivalent to four signs of the zodiac; Kaliyuga is simply the measure of Time since it is also the radius of the Sun. The Sun's radius is the key of Truth in that it unites the outer circle of the disk (the Multiple) with the inner central core (the One). We could call this: 'The Measure of Unity.' It is precisely the Sun's symbol, the point within the circle, that contains the Knowledge, as has been explained elsewhere in the text, and this corresponds as well to the orb's physical characteristics, thus showing the harmony between space and time and the evolutionary cycles of man on Earth which are determinded by the unfolding and perfectioning of concsiousness./ The Rig-veda also appears to contain the same key to measurement of Time based on the Sun of Truth because it is said to have 432,000 syllables.' -- TGC p. 62
From 'Simultaneity, Destiny and The Magical Carousel’ (2007) [LINK to full article]: 'Because of the development the Earth herself has experienced, spread over hundreds of thousands of years, the moment has arrived of what I have all along described as the Great Birth. We are in the 9th Manifestation in a cycle of 311,040 years, each Manifestation of which (6480 years) is equivalent to one month of human gestation repeated four times to cover all four planes of being (4 x 77,760). At this very special crossroads of destiny the Child nurtured for this sacred happening emerges from its protective sac as an independent entity. It too takes its first breath.
'Cosmically this describes the convergence mechanism of the Precessional Zero Point and the constellational in 234 BCE. That event, the great Cosmic Dawn, is akin to the suspension between inhalation and exhalation.' [Bold emphasis added. 234 BCE is here established as the beginning of the 25,920 year Precession of the Equinoxes, and consequently of the Age of Pisces, due to the backward movement of the Precession.]
'Vivekananda, Patrizia Norelli-Bachelet & Sri Aurobindo's Supramental Vision of Time'