Individual Hindu gods manifest themselves in many forms, in some cases including the ferocious and terrifying. Among his many guises, Shiva is an ascetic and mendicant who renounces conventional earthly existence to pursue extreme practices and austerities. This manifestation of Shiva as ascetic is the fearsome Bhairava form, who is accompanied by a dog and shown wearing a garland of severed heads. A common story about Bhairava is that he cut off the fifth head of the unruly god Brahma, and he was thus cursed to wonder the earth with this severed head in his hand. Brahminicide, the killing of a brahman, is a tremendous crime whose penance involves years of mendicant life, living on alms, and carrying a staff and a skull.