So, the three wise men who come to worship the child represent the colors of the great work.
Star of Bethlehem
What is that star, and who are these three magi? I tell you that the star is none other than the seal of Solomon, the six pointed star, symbol of the Solar Logos. Obviously, the upper triangle represents sulfur, that is to say, the fire. And what does the lower triangle represent in alchemy? It represents Mercury, the water. But, what kind of water do the alchemists refer to? It is the water—Mercury, they say—that refines the metallic radical number, in other words, the exiohehary, the sacred sperm. Undoubtedly, by means of the transmutation of our sexual secretions, that extraordinary water, that pure water, that Mercury of the secret philosophy, is elaborated. Samael Aun Weor
Pentagram
The pentagram expresses the dominion of the Spirit over the elements of Nature. We can command the elemental creatures that inhabit the regions of fire, air, water, and earth with this magical sign.
Tetragrammaton
τετραγραμμάτων – Greek for ‘four letters’.
A Greek word referring to the Hebrew name of God, the Holy Four-lettered Name יהוה YHVH (Yod He Vau He) often translated as Jehovah, or erroneously as Yahve, Yahweh or Jahve, which is actually the name of a demon although it is spelled the same way. This word has many levels of meaning and application.
In Greek, the Solar Logos, the Ain Soph Aur, is named Christ. Yet, in ancient Egypt, when the initiates addressed Christ, the Ain Soph Aur, they addressed him as RA (Re).
When in ancient Egypt they addressed the three aspects of the first triangle of the Tree of Life, namely, Kether, Chokmah, Binah, the three of them together were called Osiris.
In order to address these four parts together — the Ain Soph Aur or RA plus the three primary forces or the three Sephiroth of the first triangle of the Tree of Life — the ancients of Egypt addressed them as Osiris-Ra. In Greek they called them the Tetragrammaton. Osiris-Ra is precisely the great name that we find in the Book of the Dead. Thus, Osiris-Ra as יהוה refers to Kether, Chokmah, Binah and the Ain Soph Aur as one.