Like it's cousin the Standing Forward Fold, this yoga pose is also a great leg and back stretch. This pose is practice usually once the body is warmed up and loose in the later parts of a yoga class. This pose has many layers, that like an onion can be worked through.
As you can see with Meddy Teddy, the goal is to bring your head down to your shins. This takes time and practice. To begin, you can bend your knees as much as you need so you can bring your forehead to meet there. Gently try to straighten your legs out and explore this posture.