Polarity Therapy Volume 1, Book 3 Chart No. 23 - Shoulder Contacts with Knee Support at Various Points on the Back for Gas Release. A thumb support on the neck with a gentle head flexion toward it. Used on both sides. Book 3, Chart 22 ~ Book 3, Chart 24 Book 3, "Explanation of Chart No. 23" (Book 3, Page 98) Back to Book 3: Polarity Therapy