Analysis of information sources in references of the Wikipedia article "흡혈귀" in Korean language version.
The fear of vampirism embodied in these early conceptions was used by the Church in order to impose its fundamental values on society. The Church therefore changed some of the typical vampire traits and gave them more religious connotations that are still very much in evidence in the vampire genre today. For example, the destruction of the vampire became a religious rite; crucifixes and holy water bestowed protection; and drinking the blood of a sinner strengthened the power of the Devil, while taking Communion afforded the communicant protection. Besides their roots in folklore and the influence of Christianity, vampire traits were shaped in the development of vampire literature.
Christian belief played an important part in the development of vampire lore. According to Montague Summers, who describes the Christian position in detail in The Vampire: His Kith and Kin, Christianity accepts the existence of vampires and sees the power of the devil behind their creation. Since vampires are servants of Satan, the Church has power over them. Thus vampires f;ee from and can be destroyed by the crucifix, relics of saints, the sign of the cross, holy water, and above all, a consecrated host.