Entry to homes: Vampires cannot enter private human homes unless they are invited in by the owner of the house. Vampires do not need to be invited into public places (such as bars or restaurants). Humans can rescind their invitations from vampires, which causes the vampire to immediately
Several authors have said that their vampires have a problem because of the innate power true homes acquire over time. This leads to the implication that the less time you spend in the home, the less power in its domain it has.
With the purpose to defend against the undead, the living kept the vampires away by banning them entry into their homes. Literally, it’s like saying: I invite my own death to my home. Entry to homes: Vampires cannot enter private human homes unless they are invited in by the owner of the house.
Vampires do not need to be invited into public places (such as bars or restaurants). Humans can rescind their invitations from vampires, which causes the vampire to immediately leave the house.
What are the elements that attack vampires?
As a defense, nature attacks the vampires with sunlight, wood, vervain, and other elements (for example, water weakens vampires in the books).
Vampire Diaries. Invitation is a weakness of vampires and hybrids, including Original vampires/hybrids. In order to enter any house owned by humans, witches, werewolves, or doppelgängers, vampires or hybrids must be invited by the owners of the home. Once invited, the vampire cannot be uninvited unless the ownership of the house changes.
Entry to homes: Vampires cannot enter private human homes unless they are invited in by the owner of the house. Vampires do not need to be invited into public places (such as bars or restaurants). Humans can rescind their invitations from vampires, which causes the vampire to immediately leave the house.
What happens when a vampire invites a human?
When the human invites the vampire, they weaken their psychic defenses and allow the vampire to approach.
Psychological: Perhaps the root cause of vampirism in this world (such as a virus), inflicts an extreme form of OCD, hardwired into the vampire’s brain. The vampire would be physically capable of entering someone’s home, but they’d have an extreme, irrational aversion to doing so without an invitation.
The benefit of this method is that it could also explain the effect of holy symbolism on vampires: someone with sufficient faith would essentially have a powerful psychic field around themselves at all times. This field could cause severe injury to a vampire who got too close.
At the dawn of Christianity, a practice developed to sprinkle the houses of the believers with these ‘blessed’ substances at least once every year. Those wanting to deal with the undead would have to purify their homes and remove all traces of such compounds, before these powers would deign to enter their homes.
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In a bunch of classical stories, vampires do have this limitation that prevents them from entering a decent folk’s house without an express invitation. They hang out in the doorway, looking all innocent and politely asking if they may come in.
Since vampires are thought to be immortal, it is reasonable to assume that they are, on the average, rather ancient, and so are their memories and their conduct. It is thus reasonable to look at them much in the same way as one would look at a medieval paladin — following such a code of conduct, and merciless submitting oneself to its rules regardless what the consequences may be.
In the same sense, one should assume that a vampire could most certainly, and easily enter a house without being invited. However, this would violate their code of conduct in a sheer unimaginable way, and they would rather perish than do that.
