The Evil Eye (ayin ha-ra) is often defined as the ability to bring about evil results by a malicious gaze. In most cultures the belief is prevalent that some human beings have the power of sending destructive rays, so to speak, in order to cause harm to those of whom they are envious or otherwise dislike.
There does not seem to be any particular reason why some people are born with and others without the evil eye. The curse is usually unintentional and caused by praising and looking enviously at the victim. In Sicily and southern Italy, however, it is believed that some people–jettatore– are malevolent and deliberately cast the evil eye on their victims. Belief in the evil eye is not necessarily associated with witchcraft or sorcery, though Evil Eye was something Church inquisitors were instructed to look for. Pope Pius IX was reputed to be a jettatore, not because it was thought he was malevolent but rather because it seemed that disasters fell upon persons and places he had blessed.
Evil eye can be cured by different rituals, amulets or charms, and spells. Also prayers add to the protection of the evil eye.
Blessed Be,
Momma Seba