Sadhu is a Sanskrit term that originated in the Vedic/Hindu Dharma, otherwise called Hinduism. It is a common term in India for a renounced ascetic or yogi who has given up pursuit of the first three Hindu goals of life: kama (pleasure), artha (wealth and power) and even dharma (duty), solely dedicated to achieving moksha (liberation) through meditation and contemplation of God.
- Wikipedia (2004). Sadhu (http://www.wikipedia.org/Sadhu). Retrieved Oct. 18, 2004.