If you die and you have a strong will, your soul may actually persist as a Shade in the void for some time. Eventually it will fade away into nothingness. Persistent shades can be pulled and bound into dead flesh or clay to create servants and mounts. Some people do this to themselves as a kind of contingency plan should they die. The living dead are not truly sapient though. To get around the degradation, some evil wizards bind multiple shades into a single corpse, forming a single amalgamated entity that remains intelligent for a longer time. These creatures are often used for unclean or untouchable jobs, such as butchers. They advocate for their unintelligent kin.