The image below features Thoth—the god of communication:
Thoth sits upon the left eye of Horus, hinting at the connection between the left eye and the pineal gland. He receives divine insights from the light of the star and then writes them down as a scribe.
The pineal is located near the centre of the brain between the two hemispheres, tucked in a groove where the two halves of the thalamus join. The pineal produces melatonin, a serotonin derived hormone which modulates sleep patterns. Melatonin production is stimulated by darkness and inhibited by light.
In his right hand Thoth holds the method of communication. When you communicate with higher realms, this takes place using a star of light. If a question is posed, a perfect version of the query is reformulated as the answer. This star of light is the perfect communication vehicle that is used between members of advanced races.
So the Merkaba is held in the right hand and used as harmonic symbol of communication. You may notice the Ankh on the wrist which is a reference to light. In addition, while Thoth receives divine wisdom in his right hand he then translates it to his left hand for human, linear consumption. The writing tool is evidence of this.
So advanced humans may communicate with other interstellar races. This is instant and complete and radically changes the nature of the person involved. Rather like the movie Arrival, just interacting in his way forces the initiate to align with sacred geometrical principles that carry transformational codes.
It’s a bit like discovering that the hard drive on your old computer has a secret graphics card that you never knew about. Once acknowledged it opens up a whole new world with profound insights that deepen your entire experience. When you start communicating in this way there is no turning back.