The breath is the uniting force between mind and body; between the outer body - muscular action and inner body - consciousness. In yoga we move with the breath both in and out of the pose but also when we are still, the dynamic energy of the breath creates movement. This is a great class for beginners, it will help you understand the connection between breath and asana and why the breath is so important.
Do you want to know more about the breath? Read Nichi's blogpost here