While using this modality, the therapist is working with the cranial sacral system which consists of the membranes and fluid that surround and protect the brain and spinal cord as well as to the attached bones.
Those membranes that surround the brand and spine are like a water filled sac (or like the casing of a hot dog). They extend from the bones of the skull, face and mouth (which makes up the cranium) and down the spine to the sacrum or tailbone area. The cerebral spinal fluid (like the inside of the hot dog casing) acts like vitamin water protecting, nourishing, cleansing the tissue of the central nervous system and enhancing the nerve conductivity.
Cranial sacral therapy frees up the tissues in and around the cranial sacral system to enhance the flow of cerebrospinal fluid.