After gaining proficiency using signal as a biofeedback technique, try a more advanced practice that includes standing and movement. As demonstrated in Photo 3-15, begin by standing, and then tune into signal between the palms in the same way you did in the previous sitting practice. Once you have tuned into signal in the open space between the palms, begin to stretch and exaggerate your posture, as demonstrated by the practitioner in Photos 3-16 and 3-17. Gradually, while maintaining attention to signal, and also maintaining a tensional feeling in the palms and arms, begin moving one hand to the rear.