 extreme example of agora sadhana, where they live in the graveyards, in the cremation grounds, they eat the meat of dead bodies, they drink from the skulls, they cover themselves with the cloth that has covered a dead body, they smear themselves with the ashes of dead bodies and they do that for 12 years as a sadhana, to be able to detach from the aesthetics of the senses and to be able to see, to touch with their fingertips the transient nature of life itself.