Liu Haichan was a Daoist xian "transcendent; immortal" who is a patriarch of the Quanzhen School, and a master of neidan "internal alchemy" techniques. Liu Haichan is associated with other Daoist transcendents, especially Zhongli Quan and Lü Dongbin, two of the Eight Immortals. Traditional Chinese and Japanese art frequently represented Liu with a string of square-holed cash coins and a mythical three-legged chánchú "toad; toad in the moon". In the present day, it is called the jīnchán "Money Toad", and Liu Haichan is considered an embodiment of Caishen "God of Wealth".