His previous works were building up to exposing secrets of human history, human origins, 'Angels' and 'Demons' true nature and their messages.
ref in fact, as a landmark starmap, both Stonehenge and this monument correlate for the same representation of the ultimate place in the sky and both Stonehenge and Nashville have the beam of light symbolism.
Nut is the sacred feminine of the heavens in ancient Egypt.
I have extracted the sacred feminine of the heavens in the insert shown above the traditional monument marking positions of stars on the ground, fitting the Hermes tradition of "As above ... I have traced out all 50 pyramids of Lower Egypt as a grand star map which is explored on this website.
Before reading further if you feel this story is a little complex, consider the video of the real historical connection between the Solomon Key and all of the above mentioned material - click the 4min You Tube video of Solomon Key/Vatican/Freemason/Washington finding at the top of the page (or the link here).
Dan Brown in Da Vinci Code showed he had a passion for the symbolism of the sacred feminine.