I remember reading an essay about buddhist charnel-ground meditations ,adapted by japanese buddhists, as being "paleo guro" art.
Basically buddha told monks to go to the cremation grounds to see corpse in various rotting states, to grasp the nature of life. So, the art features young women rotting to various degrees.
tibetan buddhist art also features severe mutilations, etc
>and as a christian universalist, Id like to accuse many pastors of doing torture porn when they describe hell