India to mark Swami Vivekananda 150th anniversary
11 January 2013 Last updated at 04:51 GMT
Yoga, meditation and new age fads have become a multi-million dollar industry.
But few who practise these philosophies know that one Indian man first introduced Eastern philosophy to a Western audience back in the late 19th Century.
Swami Vivekananda, whose 150th anniversary is being celebrated in India, is also widely credited with helping India fight British rule.
The BBC's Emily Buchanan looks back at his life.