Sadhus are wandering monks, who rid themselves of material goods and live a celibate life. They chose to live away from the rest of society, often in caves or forests in India. They spend much of their time meditating, in order to achieve the fourth and final Hindu goal of life, moksha (liberation). Sadhus often daub and dress themselves in ochre, as this is a symbol of reincarnation.
Fakirs were once the Muslim version of Sadhus, but the term is now applied to those who perform feats of endurance or magic, whatever their origin. Fakirs are famous for walking across beds of hot coals or sleeping on beds of nails to prove that the mind can overcome pain and suffering.