"Rāmānuja (ācārya), the eleventh century South Indian philosopher, is the chief proponent of Vishishtādvaita, which is one of the three main forms of the Orthodox Hindu philosophical school, Vedānta. As the prime philosopher of the Vishishtādvaita tradition, Rāmānuja is one of the Indian philosophical tradition’s most important and influential figures. He was the first Indian philosopher to provide a systematic theistic interpretation of the philosophy of the Vedas, and is famous for arguing for the epistemic and soteriological significance of bhakti, or devotion to a personal God."