QC: Exorcisms as I recall tend to be considered a the release of a demon or evil spirit from a person or location. I suppose you could argue a human who relished in chaos would welcome the chance to become a demon, but that would also in itself be a mockery as it means that the Devil has the stronger, and larger forces, and gives a wicked person power instead of punishment. Blessings I believe were the same thing without the angry spirit, a prayer or act to protect a person from such evil. I admit I don't know anything of Late Burials, Sin Triggers or Afterlife Resolutions.
Don't put capital letters there. They're not concept names. i just mean all the medieval (and also modern) tales, documents, chronicles, mentionning tropes such as : a priest having to exorcise a ghost out of a place, a priest putting a ghost to rest through a blessing, or through some sort of "burial" resolution once its remains are found and get a proper ceremony, or ghosts existing because of the (christian) sins they had comitted when alive, or because of some unfinished business with a christian moral flavor.
QC: For Ghosts, Vamps, Werewolves, ect, I'm curious to find out if those creatures had existed in written lore before the expansion of Christianity out of Rome. They're not in modern bibles, none of those beasts, except for as I recall the Giants, such as the story of David slaying Goliath. If those creatures are indeed then a part of the fundamental mythology, and religion itself, then we should instead argue that the US practices a perverse and misinformed denomination, as it started in Europe and moved on to North America.
Christianity is much wider than the bible, it's a whole culture with varying representations, beliefs, practices. Many mythological elements (certainly even at the core) pre-existed and were given a christian spin afterwards. The whole celtic mythology got re-shaped by christianity, and its various spiritual entities got polarized into devil stuff and holy stuff (mostly devilish though). Think not only of the christian grail (and king Arthur isn't in the roman bible either, but his grail version is a total christianisation), but trolls (who "smell christian blood") and all the dragons and whatnot that get eradicated by catholic saints, underworld gnomes who roam the earth around christmas and get chased away by monks (the greek kalikantzari for instance)... Many of them are "invented" by christianity even when it's an adaptation of older traditional concepts, such as spiritual beings demonized by missionaries.
All of this is part of the christian mythology (as are vampiric ex-sinners who are scared of the cross, or whatever monster flees in front holy water), the same way that floating messiahs, fugitives-turned-into-salt-statues, and bread-turned-flesh are. It is not a "perversion" of anything. What is artificial and, in practice, false, is the puritan fundamentalism reference to some restrictive dogma which doesn't match the actual universe of christian people.
Christianity is defined by the practical reality of its actual usages and the beliefs (contemporary or historical) of the actual people who self-define as christians. If you refr to some more abstract, ideal, never-exclusively-endorsed-as-is, dogma, then you end up with a word of "christian" which actually designates nobody and nothing on earth.
