“The act of establishing contact with the external world is called Yoga.
It is continuous, inevitable, swiftly changing.
Yoga is a basic fact of life.
However it is the quality of the relationship that leads to a healthy life and well being or otherwise.
The clarity and strength of the force involved in the contact and awareness of the contact
is reflected in the flow of what is called Prāṇa Śakti.
What is it that disturbs this flow?”
– TKV Desikachar