Tailbone
The tailbone is the area where “the eight fetal cells” are located in our etheric Auric blueprint and they control the kundalini energies and their momentum of the planetary forces as they run through the personal meridian and nadial system. This area for most humans is highly vulnerable as many of us have been implanted with a “reptilian tail” that obstructs or siphons the energies out of the root chakra areas as well as the earth chakra connector that is about 6 inches beneath our feet.
Reference
Term first found in HGS Manual: Page 59