Published by Vedanta at August 1, 2009 The mind plays a most crucial role in human life. An individual's real strength lies not in his muscle but in the tranquility of his mind. Tranquillity is vital not only for his or her survival, but also for success and fulfillment in any walk of life. It is the source of his or her power, creativity, and self-confidence. It is as important for a saint or a mystic as it is for a scientist, an artist, an engineer, or a workman.