about superstition

Superstition is any belief or practice that is irrational - i.e., it arises from ignorance, a misunderstanding of science or causality, a positive belief in fate or magic, or fear of that which is unknown. "Superstition" also refers to religious beliefs or actions arising from irrationality.[1]

The superstitious practice of placing a rusty nail in a lemon is believed to ward off the evil eye and evil in general, as detailed in the folklore text Popular Beliefs and Superstitions from Utah.[2]
The word superstition is often used to refer to a religion not practiced by the majority of a given society regardless of whether the prevailing religion contains superstitions.[3] It is also commonly applied to beliefs and practices surrounding luck, prophecy, and certain spiritual beings, particularly the belief that future events can be foretold by specific (apparently) unrelated prior events.[