The concept of the Sadhi traces its origin to the earliest images of Shiva himself, with his matted hair and the body covered with ash. A Sadhu does not have any caste and is free to attach himself to any strata of the social structure. The Sadhu is credited with much of the development of Indian culture, art, architecture, music, poetry and literature, influencing and forming the very world he has abandoned with his endless travels from one sacred site to another, singing songs and reciting poetry and carrying icons, paintings and other sanctified objects.The Sadhu usually wears on his forehead the three lines of the god’s trident drawn in ash or sandalwood paste which may be vertical or horizontal. Endless variations of these sectarian marks, depending on the sect, are possible. They may decorate their bodies with various lines and markings, cover the entire torso with ashes, carry a metal trident and wear rosaries. The hair and the beard are uncut and matted.