(In contrast with other balancing lunges this hip and heart opener enables you to stretch more deeply because you are grounded by your back knee and front foot.) Standing tall and strong on the mat, step your right foot forward and gently take your back knee to the mat, keeping your back toes curled under for support and balance. Scoop your tailbone under and circle your arms upward. Draw your shoulder blades farther down your back, and let them help you open your heart skyward. Keep both legs strong and engaged as you hold the pose for 3 to 5 breaths. Switch legs and repeat.