The Sanskrit word "yoga" actually means "union with the divine". The stretching exercises that we in the west associate with yoga were originally designed, thousands of years ago, to help the practitioner gain control of their own life force, a spiritual energy known as Kundalini. The stretches, however, are not the only aspect of yoga. Meditation is also a key facet of yoga. Ensure you choose the right location and prepare yourself adequately, and your yoga meditation will be a very beneficial experience.