"Things may be done, caused to be done, or approved of", and the effect upon us is nearly equal.
Complete continence gives great intellectual and spiritual power. The Brahmachârin must be sexually pure in thought, word, and deed. Lose regard for the body; get rid of the consciousness of it so far as possible.
Âsana (posture) must be steady and pleasant; and constant practice, identifying the mind with the Infinite, will bring this about.
Continual attention to one object is contemplation.
When a stone is thrown into still water, many circles are made, each distinct but all interacting; so with our minds; only in us the action is unconscious, while with the Yogi it is conscious. We are spiders in a web, and Yoga practice will enable us like the spider to pass along any strand of the web we please. Non-Yogis are bound to the particular spot where they are.
- Swami Vivekananda
The Complete Works of Swami Vivekananda/Volume 7/Inspired Talks/Thursday, July 25,1895. (Patanjali's Yoga Aphorisms)