A person of this character represents a great danger to moral purity, according to some Jews.Rabbi Abraham Isaac Kook explained that the evil eye is "an example of how one soul may affect another through unseen connections between them. We are all influenced by our environment... The evil eye is the venomous impact from malignant feelings of jealousy and envy of those around us. "Many observant Jews avoid talking about valuable items they own, good luck that has come to them and, in particular, their children. If any of these are mentioned, the speaker and/or listener will say bli ayin hara (Hebrew), meaning "without an evil eye", or kein eina hara (Yiddish; often shortened to kennahara), "no evil eye". Another way to ward off the evil eye is to spit three times (or pretend to). Romans call this custom "despuere malum," to spit at evil. It has also been suggested the 10th Commandment: "Do not covet anything that belongs to your neighbor" is a law against bestowing the evil eye on another person. In Christianity
Christianitys beliefs of the evil eye can be located in some passages of the Bible. In Luke 11:34 Jesus referenced to the eye as the lamp of the body. If a persons eye is generous, then their whole body will be full of light. If their eye is evil, then their whole body will be full of darkness. Cross necklaces are worn by some Christians who believe the cross offers protection from Satan.
According to folk belief, the bad effects of an attack result from the "hot" force of the aggressor entering the childs body and throwing it out of balance. Currier has shown how the Mexican hot-cold system is an unconscious folk model of social relations upon which social anxieties are projected. According to Currier, "the nature of Mexican peasant society is such that each individual must continuously attempt to achieve a balance between two opposing social forces: the tendency toward intimacy and that toward withdrawal. [It is therefore proposed] that the individuals continuous preoccupation with achieving a balance between heat and cold is a way of reenacting, in symbolic terms, a fundamental activity in social relations." Puerto Rico
In Puerto Rico, Mal de Ojo or "Evil Eye" is believed to be caused when someone gives a wicked glare of jealousy to someone, usually when the person receiving the glare is unaware. The jealousy can be disguised into a positive aspect such as compliments or admiration. Mal de Ojo is considered a curse and illness. It is believed that without proper protection, bad luck, injury, and illness are expected to follow. Mal de Ojo impact is believed to affect speech, relationships, work, family and most notably, health. Since Mal de Ojo centers around envy and compliments, it creates fear of interacting with people that are outside of their culture. Indirect harm could be brought to them or their family.