A charm is in Magic, a spell or “little prayer” for something desirable. Charms may invoke the help of Demons. Popular charms are used to secure the love of another person, to find treasure or acquire riches, to have good luck, and so forth. The Catholic Church considers charms to be undesirable and acts that open the door to Demonic influence, even Possession, for either the person who makes the charm or the one for whom the charm is intended. The church advises that objects related to charms be destroyed.
– Fortea, Fr. Jose Antonio. Interview with an Exorcist: An Insider’s Look at the Devil, Diabolic Possession, and the Path to Deliverance. West Chester, Pa.: Ascension Press, 2006.