The dragon (from Ancient Greek "a serpent of huge size, a python, a dragon") is a mythical creature typically depicted as a gigantic and powerful serpent or other reptile with magical or spiritual qualities. Dragons are commonly symbols of good luck or health in some parts of Asia, and are also sometimes worshipped. Asian dragons are considered as mythical rulers of weather, specifically rain and water, and are usually depicted as the guardians of pearls. Chinese dragons are often shown with large pearls in their grasp, though some say that it is really the dragon's egg.