Blessed are the flexible, for they shall not bend out of shape.
Yoga takes you to the present moment- the only place where life exists. Do not just master the posture. Use the posture to understand and transform yourself. The objective is not self improvement but self acceptance.
Yama or Self Control - in Yoga it is taught to have control over oneself not only physically but morally as well. The main ideas behind having moral self control are to be non- violent or harmless to the world around you and to be truthful in your life.