Ancient people have drawn this symbol when they've noticed the presence of Sunkies in caves or underground galleries near by.
The Sunkies were created by the Extraterrestrial Genetic Engineer Gadreel as trying to amend his error in giving the first Adams and Eves alucinogenous plants.
The sunkies were always kind and peaceful beings. When the man became violent and unstable on the surface, those little beings decided to walk away. Currently, as we know, they are living in silence with us under the protection of their underground galleries.
They dug and conditioned many of the labyrinths of the earth's crust, the same ones that would later be used by the White Brotherhood. Not all tunnels have extraterrestrial origin.
https://cosmicsong.org/index.php/dictionary/sunkies
