This series covers four one hour lessons produced in 2007. The lessons covers four important principles for working with the internal energy aspects of Tai Chi Chuan. Firstly, the principle is introduced, and explained in detail. Secondly, the entire Long Form is shown with attention to this specific principle. 1) Feet. How to gather energy into the inside of the foot and release it from the heel. Essential for balance and chi/energy awareness. 2) Kua or Hips. Gathering and releasing energy from the hip area and integrating this with the feet and waist. Improved performance in all aspects of form, push hands, and any movement. 3) Torso and Eyes. Correct torso alignment during all aspects of each movement � start or yin, middle or balanced, and final or yang. Also, shows how the eyes affect the energy – the yin/yang of the eyes. 4) Hands. The many different types of hand postures are explained, and this knowledge is integrated into the form.