"Buddhist siddhas demonstrated the appropriation of an older sociological form—the independent sage/magician, who lived in a liminal zone on the borders between fields and forests. Their rites involved the conjunction of sexual practices and Buddhist mandala visualization with ritual accoutrements made from parts of the human body, so that control may be exercised over the forces hindering the natural abilities of the siddha to manipulate the cosmos at will. At their most extreme, siddhas also represented a defensive position within the Buddhist tradition, adopted and sustained for the purpose of aggressive engagement with the medieval culture of public violence. They reinforced their reputations for personal sanctity with rumors of the magical manipulation of various flavors of demonic females (dakini, yaksi, yogini), cemetery ghouls (vetala), and other things that go bump in the night. Operating on the margins of both monasteries and polite society, some adopted the behaviors associated with ghosts (preta, pisaca), not only as a religious praxis but also as an extension of their implied threats."