In the West we have come to equate the term "yoga" with yoga postures, but in fact they form only a small – albeit important – part of the whole system. The term "yoga" in fact implies a whole way of life which includes yoga postures as one of its many facets.
In Sanskrit, yoga postures are called asanas. Asana means "a posture giving physical comfort and mental composure." Asanas affect the glands, nerves, muscles and all the organs of the body. There are many physical benefits, but the most important effect is on the mind.
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