This work is the result of the inquiry undertaken in India from 2006 to 2008, in towns that have intensive spiritual activities (Delhi, Agra, Mathura, Vindavan, Kajuraho, Varanasi, Kishikesh, Ajodhya...) and constitutes a study on Hinduism. It analyses the internal organization, the practices and rites that make the Hindu religion a different entity from the revealed religions.