The undulation movement can be restored through practice. Let your spine sway from side to side like a willow in the wind, as shown in the illustration below. Imagine that you are being pulled from side to side by a string that attaches to the center of your chest. Let the rest of your body relax and simply respond to this movement. Remember to release your neck.
Undulation brings great flexibility and fiuidity to the spine.
Undulation can also be practiced moving from front to back. Work with your Practitioner on the undulation movement, and practice it between sessions. Experiment with relaxing, taking a breath into your back, and allowing whatever emotion is present to emerge. The client handbook continues with Section 7.