Craniosacral therapy (CST) is addressing the body through the cranial sacral system. Structurally the system is composed of the bones of the head, the spinal column and three layers of membranes called the meninges, which contain the cerebrospinal fluid. The tube like structure of the meninges surrounds the brain, goes down through the center of the vertebrae to the sacrum, merging with the coccyx, the last fused vertebrae of the sacrum.
Like a semi-closed hydraulic system, the fourth ventricle of the brain pumps cerebrospinal fluid throughout the cranial sacral system, bathing and protecting the brain while taking nutrients to and fro. The rhythmic motion of this pumping action can be felt throughout the body much like that of the heart and lungs. Therapeutically assessing the strength, symmetry, and range of motion of this core energy is used diagnostically by osteopaths. For a Craniosacral Therapist it is a guide to areas of restriction.
Somato-Emotional Release (SER) is the body's cell memory guiding the physical facilitation of the body to a position for release.