Knees out to the side in frog position, elevate one knee onto a yoga block. Keep hips in line with the knees. If your right leg is elevated you will place your left hand on the floor about a foot in front of you keeping the arm straight – then dive the right arm under your body toward your left side, resting your right shoulder on the ground at the midline of your body. To increase the spinal stretch you can then elevate your top arm (in this case the left one) toward the sky.