A wide variety of spirits roam the lonely paths of Skyrim. Some are fierce and terrible, hateful and jealous of mortal creatures. Others are simply mischievous, full of playful wickedness that can turn dangerous if the target isn't completely aware of what's happening. A few can be benevolent, but even these can turn hostile if the proper decorum and respect aren't adhered to. These spirits range from free-roaming Daedra to the mortal dead to nature personified, though such distinctions may not matter much if you become embroiled in a haunted encounter. What do you care if the spirit harassing you is a marauding Daedra or the lingering shade of a village peasant? It's still just as insubstantial. It's still just as dangerous.