luck

Luck is a phenomenon or belief that humans may associate with experiencing improbable events, especially improbably positive or negative events.
Philosophical naturalism, eschewing any supernatural explanations, might suggest that positive or negative events may happen at any time (due to both 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.
Supernatural interpretations of luck consider it to be an attribute of a person
or of an object, or the result of a favorable (or unfavorable) view manifested by a deity
towards the lucky (or unlucky) person.
These interpretations often prescribe how luckiness or unluckiness can be obtained, such as by carrying a lucky charm or offering sacrifices or prayers to a deity. Saying someone is "born lucky" may hold different meanings, depending on the interpretation: it could simply mean that they have been born into a good family or circumstance; or that they habitually experience improbably positive events, due to some inherent property, or due to the lifelong favor of a god or goddess in a monotheistic or polytheistic religion.
Many superstitions are associated by superstitious persons with a concept of luck,
though such superstitions are often specific to a given culture
or set of related cultures, and they sometimes vary between cultures. For example, lucky symbols include the number 7 in Christian-influenced cultures and the number 8 in Chinese-influenced cultures. Unlucky symbols and events include entering and leaving a house by different doors or breaking a mirror in Greek culture, throwing rocks into a whirlwind in Navajo culture, and ravens in Western culture. Some of these associations may derive from related facts or desires. For example, in Western culture opening an umbrella indoors might be considered unlucky partly because it could poke someone in the eye, whereas shaking hands with a chimney sweep might be considered lucky partly because it is a kind but unpleasant thing to do given the dirty nature of their work. In Chinese and Japanese culture, the association of the number 4 as a homophone with the word for death may explain why it is considered unlucky. Extremely complicated and sometimes contradictory systems for prescribing auspicious and inauspicious times and arrangements of things have been devised, for example feng shui in Chinese culture and systems of astrology in various cultures around the world.
Many polytheistic religions feature specific gods or goddesses who are associated by adherents with luck, either good or bad. Such deities include Fortuna and Felicitas in the Ancient Roman religion (the name of the former relating to the words "fortunate" and "unfortunate" in English), Dedun in Nubian religion, the Seven Lucky Gods in Japanese mythology, mythical American serviceman turned prosperity-god John Frum in a Vanuatu cargo-cult,
and the inauspicious Alakshmi and her auspicious counterpart Lakshmi
in Hinduism.

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