One of these people is taught humbleness by a butcher in the Vyadha Gita. Tamil communities of these people include the Iyers and Iyengars. Historically, these people were split into seven gotra lineages based on their descent from seven rishis. Eight-year-old boys from this group become ‘twice (15[1])born’ by receiving a sacred yellow thread in the Upanayana ceremony. One of these (15[1])people called a purohita performs (*) yajna ceremonies by sacrificing offerings to a ritual fire. These people are forbidden from killing (10[1])animals and traveling overseas. This varna was created from the mouth of Purusha in a hymn from the Vedas, which this caste had a monopoly on teaching. For 10 points, name this priestly caste in Hinduism. (10[1])■END■