the symbol of the snake in the sky symbolises the meeting point between the ecliptic and galaxy, the so-called stargate between Scorpio and Saggitarius, just where serpens is located. This has been occulted away as it is meant as a coded secret to be discovered.
The 12 signs of the inner zodiac are the correct number, the 13th one is a secret that lies behind and represents another level, that of the imprisonment on this planet.
The earth has been cordoned off from the living etheric forces of the other "spheres" and etheric beings that are the planets. This happened because the whole solar system was disturbed. The earth became the silent planet locked out and separated; the key to this lock is the moon; and the moon holds the energy that makes this lock real. It is symbolised by the serpent, the ourobouros, that encircles the Earth (look at the NATO symbol).
The stargate is the point identified by the Egyptians and others (in the place of the 13th sign) as the escape route / or entry point from this.
This disturbance caused the pole shifts and are referred to as the Zep Tepi.
Since then the powerful Evil Mind has organised humanity to rush forward technologically to help its leaders to find a way to escape, at any cost to humanity, and by placating us with material benefits.