There is no difference in souls, only the ideas about ourselves that we wear.
As the trunk is one but the branches are many, yoga is one but adaptations may vary.
When an asana is done correctly the body movements are smooth, there is lightness in the body and freedom in the mind.
Activity and passivity must go together in asanas.
It is not yoga that injures, but the way one does yoga that leads to injury.
Yoga is a mirror to look at ourselves from within.