Religion
Hinduism, with a polytheistic and ritual tradition comprising numerous cults and sects, is the oldest of several religions that originated in South Asia. It remains a unifying force of Indian culture and the social caste system—which Hindu tradition sees as a reflection of the relative spiritual purity of reincarnated souls. The religion has had little appeal outside the Indian cultural context. Except on Bali and other “Hinduism” islands of Indonesia, Hinduism is practiced outside the subcontinent mainly by Indian expatriates.