The Butterfly in Your Head

We all know the expression: "As Above, So Below." Nothing is more so in the human body. And certainly the reverse is true too: as below, so above. This post is about the sphenoid bone, which came about first as an observation of another human being, and then formed as an idea that wanted to be expressed while I was semi-awake on a weekend morning and very vividly felt how the subtle adjustment of my head on my pillow produced an equally subtle (but very felt) adjustment in my sacrum.

The sphenoid is an amazingly beautiful bone inside your skull, which makes up the anterior base of the cranium, and sits just above the upper soft palate. It is shaped like a butterfly or a like a bat or a small bird with outstretched wings. Here is a visual:

Rotating sphenoid! From http://commons.wikimedia.org/wiki/File:Rotation_sphenoid_bone.gif.

Impressive? Mind-blowing? I thought so... Here is a video of animated skull anatomy if you are further interested in visualizing.

This bone is amazing on many levels: it articulates with all the other bones in your cranium, holding them together like a keystone in an arch (but upside down). It is the center of gravity in the head and its position and ability to rock gently (more on that in a moment) are critical to overall health and well-being. The sphenoid—which means a wedge; and is another way to think of a keystone—is the area where the nerves leave the brain to connect with the spinal column and the lower spine. This bone also houses the pituitary gland, is close to the ears and has the nerves of the eyes passing through it. The pituitary controls the functions of all other endocrine glands.

On a skeletal and fascial level, the sphenoid connects to the sacrum first via the the sphenobasilar joint (the joint of the sphenoid and the occipital bone, i.e. the base of your skull), then through the atlanto-occipital joint where the atlas (first vertebra) and your skull meet, down through all the other vertebrae of the spine to the sacrum. Through these links, the sphenoid and sacrum function as unit.

Just as the sacrum rocks forward (nutation; into the body) and back (counter-nutation), the sphenoid exhibits a subtle pulsing that can be quietly experienced and resembles bird's or butterfly's wings flexing forward and back. Here is a video of this mesmerizing motion. This connection between the motion of the sacrum and the sphenoid is the basis for craniosacral therapy. Further, this approach talks not only about a fascial and skeletal connection between the sphenoid on top of the spine and the sacrum at the base of the spine, but of a deeper connection via the membrane system surrounding the brain and the spinal cord and the cerebrospinal fluid. The movement of the cerebrospinal fluid and the membrane system can be felt as a tidal motion, a kind of welling and receding which is called the craniosacral rhythm.

What does any of this have to do with your everyday well-being and your practice? Here it goes.

I often tell my yoga students to stop clenching their teeth and stop doing the pose with their face. Besides being funny, the above makes it clear that if your teeth are grinding and your jaw is tense, not only can this lead to TMJ and other neck issues, but the sphenoid and everything all the way down to the sacrum will be gripping as well and you are quite effectively locking yourself out from your core intelligence. Being tense in the eyes, jaw, throat and neck, and having poor head posture (such as forward head, rigidly holding the head still as in meditation or in front of a computer) disrupts the pulsing of the sphenoid and cuts/disconnects your head from your spine and the rest of your body.

Simply, clenching your teeth means you are clenching your butt, which can explain your low back pain, sacroiliac (SI) joint issues, and the like. The sphenoid and the sacrum quite simply mirror each other.

What can you do? One would be to soften. Close your eyes and let go of the mask of your face, softening your skin, your hair, making space between the upper and lower teeth, quieting the hands and the feet. Once you access that space (and I mean this literally), I think you will be surprised to feel the subtle movement of your head as it tries to balance on top of your neck and the internal movements of being human (heart beat, breath, gas, etc.). Remember, the more you hold yourself physically still, the more you are grasping. As you sit quietly, do mini horizontal figure 8 (or infinity signs, if you wish) movements with the tips of your nose, as if with a tiny paintbrush.

Breathe! As you inhale, imagine and allow the inside of the mouth to expand, the soft palate to widen and broaden. As you exhale, think of the soft palate gently drawing in and up, gently massaging the sphenoid above it and coaxing it to resume its pulse.

Finally, smile with your neck (follow the link for detailed description)!

Becoming aware of your sphenoid and integrating this knowledge into your life and practice is reorganization of your embodiment from the core outwards!

Thank you for reading!