I just had the honor of spending time with one of the Abbots of my tradition- Dr. Thomas McCombs. He was teaching about the history of our Tao Tan Pai lineage but there was a particular aside that grabbed my attention. Being a doctor of Osteopathy, Dr. McCombs has extensive experience in both medicine and the Taoist esoteric arts.
He taught me about a particular network of veins called Batson’s Vertebral Plexus. I remember studying this in school but the implications did not strike me at the time. Batson’s plexus is a venous channel which directs blood flow from the pelvis/sacrum back up the spine and up to the brain.
“The plexus comprises the intracranial-cortical veins, dural sinuses, cavernous sinuses and ophthalmic veins and the vertebral venous plexuses which freely anastomose with the intracranial venous system.”