Leprechaun

The leprechaun is one of the most distinctive figures in European fairy mythology — a small, solitary fairy craftsman, traditionally depicted as an elderly male dressed in green, who spends his time mending shoes. His importance as a luck figure derives from the treasure he is said to keep: a pot of gold hidden at the end of a rainbow, which can be claimed by any mortal clever enough to catch him and hold him without blinking until he reveals its location.

In original Irish folklore (as distinct from modern popular imagery), leprechauns were not exclusively green — red was equally traditional — and they were creatures of genuine power and unpredictable temperament, to be approached with respect and caution. They belonged to the Tuatha Dé Danann, the supernatural race of beings who retreated underground when the Celts arrived in Ireland, and their shoe-mending was interpreted as evidence of their constant travel between this world and the fairy realm.

The leprechaun's association with luck is paradoxical and interesting: he is not naturally benevolent. His treasure must be won through cunning and vigilance, and he will use every trick at his disposal to escape capture. This makes him a symbol of luck as something active and pursued rather than passively received — the fortune of someone quick-witted enough to seize their opportunity and hold it fast.