How does Craniosacral Therapy help singing?

When I was in my mid 20’s, I had chronic low back pain.  I used to sleep on heating pads.  I felt a grip in my back when I would stand and sing. My voice teacher advised me to go to The Skylight Centre for Craniosacral Therapy.  I would lie down on a table, and practitioners would put their hands on my head, sacrum and feet.  The stress would drain away and I would enter this deep state between sleep and awake. And the back pain went away.  I was so inspired that I studied Craniosacral therapy (CST) after returning to California in 2007.  I found success practicing CST on singers and musicians, and I began to include craniosacral unwinding and jaw massage in voice lessons.  Students would completely relax their jaw tension and sing with a softer, easier tone, yet still be aware of the muscles needed for singing.  Because CST is such finite work, it also enhances the body awareness needed to individually sense and train the small muscles and structures associated with singing.  Imagine a meditation sit of 30-60 minutes where your muscles are not stiff afterwards, but deeply relaxed.