http://anmolmehta.com/blog/2007/09/06/m ... instantly/
excerpt from 'Autobiography of a Yogi'.
"‘Really, it has been your thoughts that have made you feel alternately weak and strong.’ My guru looked at me affectionately. ‘You have seen how your health has exactly followed your subconscious expectations. Thought is a force, even as electricity or gravitation. The human mind is a spark of the almighty consciousness of God. I could show you that whatever your powerful mind believes very intensely would instantly come to pass.‘
"Knowing that Lahiri Mahasaya never spoke idly, I addressed him with great awe and gratitude.: ‘Master, if I think that I am well and that I have regained my former weight, shall those things come to pass?’
"’It is so, even at this moment.’ My guru spoke gravely, his gaze concentrated on my eyes.
"I instantly felt an increase not only of strength but of weight. Lahiri Mahasaya retreated into silence. After a few hours at his feet, I returned to my mother’s house, where I stayed during my visits to Banaras.
"My son! What is the matter? Are you swelling with dropsy?" Mother could hardly believe her eyes. My body was now as full and robust as it had been before my illness.
"I weighed myself and found that in one day I had gained fifty pounds; they have remained permanently."