Did some digging in December on this.

The Sphenoid Bone: The Keystone of the Body

The sphenoid is a butterfly-shaped bone inside the skull. CranioSacral therapists and many Osteopaths recognize the importance of the sphenobasilar joint (the joint of the sphenoid and the occipital bone) to overall health. The sphenoid’s relationship with the occiput is critical. Because of its location it can affect the pituitary gland, the nervous system and blood flow to and from the brain. http://emilycrocker.com/sphenoid-bone-keystone-body.html

I think this is part of why cabal/black eyes habben, they are accessing the pituitary gland for some reason.