I still think the ankh represents the cranial-sacral rhythm. The “ankh purification” (second illustration) is a beautiful depiction of how the cranial-sacral rhythm is controlled by the nerves on the sagittal suture, and extends fluidly throughout the body. Thank you for that.
The Egyptians seem to have understood that connection between the cranial-sacral rhythm and the movement of breath:
and the relationship between ligaments of the sacrum (Isis Nephthys, first illustration), the cranial-sacral rhythm, and the free movement of consciousness. Also, as I understand from my friend John, the importance of the hypnogogic states. They had the most amazing depictions of the relationship between human kinesthesiology, the cranial-sacral rhythm, the pulmonary rhythm, and consciousness; most folks find it anathema to associate the spirit with the body, and look for some other explanation. I love that quote in Gospel of Thomas about being amazed at the riches in such poverty, to me that’s what it means:
“(29) Jesus said: If the flesh came into existence because of the spirit, it is a marvel. But if the spirit (came into existence) because of the body, it is a marvel of marvels. But as for me, I wonder at this, how this great wealth made its home in this poverty.”