HE WHO FINDS IN THE MIDST OF INTENSE ACTIVITY THE GREATEST REST, AND IN THE MIDST OF THE GREATEST REST INTENSE ACTIVITY, HE HAS BECOME A YOGI

 When we come to that non-attachment, then we can understand the marvellous mystery of the universe; how it is intense activity and vibration, and at the same time intensest peace and calm; how it is work every moment and rest every moment. That is the myst...ery of the universe — the impersonal and personal in one, the infinite and finite in one. Then we shall find the secret. "He who finds in the midst of intense activity the greatest rest, and in the midst of the greatest rest intense activity, he has become a Yogi."[3] He alone is a real worker, none else. We do a little work and break ourselves. Why? We become attached to that work. If we do not become attached, side by side with it we have infinite rest. ...

- Swami Vivekananda
Krishna - Delivered in California, on April 1, 1900

THIS IS THE QUESTION: WITH EVERY SENSE AND EVERY ORGAN ACTIVE, HAVE YOU THAT TERMENDOUS PEACE [ SO THAT ] NOTHING CAN DISTURB YOU ?

"He who sees in the midst of intense activity, intense calm, and in the midst of intensest peace is intensely active [is wise indeed]......This is the question: With every sense and every organ active, have you that tremendous peace [so that] nothing can disturb you? Standing on Market Street, waiting for the car with all the rush ... going on around you, are you in meditation — calm and peaceful? In the cave, are you intensely active there with all quiet about you? If you are, you are a Yogi, otherwise not.

- Swami Vivekananda
(Delivered in San Francisco, on May 29, 1900)
 The Complete Works of Swami Vivekananda/Volume 1/Lectures And Discourses/The Gita III