Barong and Rangda have become part of culture and religion in the tradition of Hindu religion. The Barong and Rangda tradition is a ritual process or pratima that is very sacred. The scary forms of both often scare children, but is greatly admired and adored since it is considered a protector from danger and disaster. If Barong and Rangda are worshiped in horrifying figures, it is then not uncommon for non-Hindus to assume that Hindus worship Satan because their description of Satan relates to scary things. Based on the above, there are three essential points to focus in this article. First, how the concepts of Barong and Rangda are in Hindu Literature; second, how Barong and Rangda are in Balinese Culture; and third, how the religious system of Barong and Rangda is in Hindu rituals. In analyzing these three topics, the researcher applied qualitative method to explain Hindu literary sources based on religious theory. The Barong and Rangda conception is in the Hindu literature, namely the Purana books and the books that have been adapted in Old Javanese literature. In the Purana books, Barong and Rangda can be associated with the manifestation of Shiva and Durga in the aspect of Krodha. Second, Balinese culture sets Barong and Rangda in the Sacred and Profane realms. Barong and Rangda become Wali Dance during religious rituals. Third,  the Hindu Religious System explains that Barong and Rangda is the concept of Shivaistic divine teachings which explains the dualistic aspects of God as Purusa and Prakerti as a whole unit.