User blog comment:General MGD 109/Shōjō?/@comment-3045936-20120402045339

Not all monsters are mudated human hunger creatures. While, there are rare exceptions some monsters are spiritual but aren't related to ghost.s For they still go to Purgatory when they die. And you have to take it the fact that it might not be a spirit. In the old days that how the monster and its powers are used might be classified as spiritual for its normally invisible and telekinetic while most monsters in the series only have super senses, enhanced strength, and possible shapeshifting powers in relation to the monster it is. So they might call it a spirit when its not.