For millennia and by almost all peoples it has been considered a powerful lucky charm. Those who manage to find it usually leave it to dry and carry it in their wallet to wish each other money and good luck. It is also often the object of a gift among lovers who give it to each other so that their love is unassailable. Dreaming of it is an excellent omen of luck in all fields. Play number 59.

Let's see other meanings depending on the context:

• Dreaming of finding a quatrefoil: warns of a rare occasion; play number 22.