From Warrior One Pose, with your right leg forward, step forward into a balancing position using your arms for leverage. Though your body is balancing on your right leg, push back through your left heel, keeping the foot flexed, so as to strengthen and condition the upper back of your left leg and glute. Keep your stomach muscles flexed to protect your lower back. Pick a focal point on the ground, about 2.5 to 3 feet in front of your right foot. This will help you maintain the posture and experience the balance itself. Is balance fixed and stable, or is it rather the union of constant flux between right and left? Don’t do this pose if you’re not warmed up!