Purity is when there is no anxiety, no worry, no thinking.
Without the accurate spine movement, one can't exist dynamically.
Confidence, clarity and compassion are essential qualities of a teacher.
Nothing can be forced, receptivity is everything.
Be inspired but not proud.
First yoga deals with health, strength and conquest of the body. Next, it lifts the veil of difference between the body and the mind. Lastly, it leads the Sadhaka to peace and unalloyed purity.