Symbolic representation of Pleroma

First the • (Point), the Monad, Bythus (the Deep), the unknown and unknowable Father. Then the Δ (Triangle), Bythus and the first emanated pair or Duad, Nous (Mind) and its syzygy Aletheia (Truth). Then the □ (Square), the dual Duad, Tetractys or Quaternary, two males ||, the Logos (Word) and Anthrôpos (Man), two females, their syzygies, = Zoê (Life) and Ekklesia (the Church or Assembly), Seven in all. The Triangle the Potentiality of Spirit, the Square the Potentiality of Matter; the Vertical Straight Line the Potency of Spirit, and the Horizontal the Potency of Matter. Next comes the Pentagram ⋆, the Pentad, the mysterious symbol of the Manasáputras or Sons of Wisdom, which together with their syzygies make 10, or the Decad; and last of all, the Hexalpha or interlaced Triangles ✡ the Hexad, which with their syzygies make 12, or the Dodecad. Such are the Contents of the Pleroma or Completion, the Ideas in the Divine Mind, 28 in all, for Bythus or the Father is not reckoned, as it is the Root of all. The two small circles within the Pleroma are the syzygy Christos-Pneuma (Christ and the Holy Spirit); these are after-emanations, and, as such, from one aspect, typify the descent of Spirit to inform and evolve Matter, which essentially proceeds from the same source . . . The Circle of the Pleroma is bounded by a circumference emanated from Bythus (the Point), this is called the Horus (Boundary), Staurus (Stock, Stake, or Cross) and Metæcheus (Participator); it shuts off the Pleroma (or Completion) from the Hystêrema (the Inferiority or Incompletion), the larger from the smaller Circle, the Unmanifested from the Manifested. Within the Circle of the Hysterêma is the Square of primordial Matter, or Chaos, emanated by Sophia, called the Ektrôma (or Abortion). Above this is a Triangle, primordial Spirit, called the Common Fruit of the Pleroma, or Jesus, for to all below the Pleroma it appears as a unity. Notice how the Triangle and Square of the Hysterêma are a reflection of the Triangle and Square of the Pleroma. Finally, the plane of the paper, enclosing and penetrating all, is Sigê (Silence). 

— G.R.S. Mead & H.P. Blavatsky

This symbolism truly represents the doctrine of Valentinians and the Vedic Aryans that this world was created by the demiurge which is modelled based on the real Pleromic world. The symbol is allegorical and should not treated as a literal representation of the Pleroma. This symbol unites the Valentinian tradition with the Shukla Yajurveda tradition and I have this symbol on my car's rear window which truly represents our gnostic doctrine unifying both the traditions who want to send out the same message to the world.