Luck is the phenomenon and belief that defines the experience of improbable events, especially improbably positive or negative ones. The naturalistic interpretation is that positive and negative events may happen at any time, both due to random and non-random natural and artificial processes, and that even improbable events can happen by random chance. In this view, the epithet "lucky" or "unlucky" is a descriptive label that refers to an event's positivity, negativity, or improbability.
In Western culture, a four-leaf clover, a rare variant of the shamrock, is often considered to bestow good luck.
1927 advertisement for lucky jewellery. "Why Be Unlucky?".
Maneki-neko with Seven Lucky gods
A horseshoe on a door is regarded a protective talisman in some cultures.
A superstition is any belief or practice considered by non-practitioners to be irrational or supernatural, attributed to fate or magic, perceived supernatural influence, or fear of that which is unknown. It is commonly applied to beliefs and practices surrounding luck, amulets, astrology, fortune telling, spirits, and certain paranormal entities, particularly the belief that future events can be foretold by specific unrelated prior events.
Witch-hunting is commonly motivated by religious superstition