The infamous 'Eye in the Triangle' of the Rosicrucians, Freemasons and Illuminati, seems to have a deep connection with the Sirius star system (a trinary star system, as believed by the Dogons and later confirmed by science in 1995). The pentagram also bears connection to Sirius (it was a symbol for Sirius in Ancient Egypt, as well as in several other cultures).
The pentagram consists of five triangles, typically with either 3 points pointing up or 2 points pointing down. 2-3-5. I actually have a theory that much of the 23-5 archetype that arises all over the place has to do with fractal patterns. Carbon-based organisms tend to include pentagram-based formations (apples, starfish, human hands, flowers, etc.), and this has to do with the Golden Mean, which directly relates to the pentagram geometrically, and is the rate of exponential growth in most carbon-based organic systems, as well as several non-organic (in the sense of non-carbon-based) systems, such as the Stock Market.
Therefore 23 and 5 showing up all over the place directly relates to the Pentagram, which also directly relates to the Holy Chaos, which portays a pentagram in opposition to an apple. The inner pentagon of a pentagram can be seen in crystals, and the outer star formation in carbon-based organisms like the Apple.
23 and 5 perhaps have so much synchronicity surrounding them because of a sort of Pythagorean ratio that shows up in all systems based on Phi (1.6180339).
Pythagoras' name means literally 'I am the Serpent', and in his esoteric religion, he apparently spoke of Sirius as being in some way sacred.
Get this: the eye in the pyramid was thought to have been adopted by Pythagoras as a symbol whilst travelling through Egypt, learning the secret alchemies of Thoth.
Thoth was the Egyptian god of wisdom, and was sometimes metaphorically called 'The Serpent of Wisdom'. It is thought by some that Thoth and the Mayan god Kukulcan are actually the same entity...
The Eye in the Pyramid archetype actualy may have originated with the Triple-Goddess symbolism associated with Sirius. Sirius was referred to by some ancient sects as 'The Mother Star'... The Greek word for this Great Mother was either written as a single letter, Mu, or as two succeeding letters, MU MU. Mu Mu also denotes Light, which was said to emanate magnificently from SIRIUS (and it does, of course, in comparison to other stars besides the Sun).
Light was/is known as the Menstruum of the Red Dragon to alchemists and high-level Freemasons. This relates to the ISIS myths.
Believe it or not, the ancient Egyptians referred to ISIS as actually being Sirius at one point in their history, and related Orion to her husband, Osiris. She was said to be the 'Bringer of Light'...
Which is interesting, because the Eye of Horus, deeply associated with ISIS, was one version of the Eye in the Triangle archetype... And, to the Freemasons at the turn of the 19th century, the Eye in the Pyramid was called 'The Eye of Lucifer'. Lucifer means 'light bearer'... Light is the Menstruum of the Red Dragon. The Red Dragonn is ISIS. Red as a colour has also been associated with Sirius for thousands upon thousands of years because Sirius appears red when it is close to the horizon...