On the one hand, elements of pre-Han dynasty mythologies such as those in Shan Hai Jing were adapted into these belief systems as they developed (in the case of Taoism), or were assimilated into Chinese culture (in the case of Buddhism). On the other hand, elements from the teachings and beliefs of these systems became incorporated into Chinese mythology. For example, the Taoist belief of a spiritual paradise became incorporated into mythology, as the place where immortals and deities dwell.
The Eight Immortals (Chinese: 八仙; pinyin: Bāxiān; Wade–Giles: Pa-hsien) are a group of legendary xian ( immortals; transcendents; saints ) in Chinese mythology. Each Immortal's power can be transferred to a power tool (法器) that can give life or destroy evil. Together, these eight tools are called Covert Eight Immortals (暗八仙 àn ~). Most of them are said to have been born in the Tang Dynasty or Song Dynasty. They are revered by the Taoists, and are also a popular element in the secular Chinese culture. They are said to live on a group of five islands in the Bohai Sea which includes Penglai Mountain-Island.
The tradition of depicting humans who have become immortals is an ancient practice in Chinese art, and when religious Taoism gained popularity, it quickly picked up this tradition with its own immortals[citation needed]. While cults dedicated to various Taoist immortals date back to the Han dynasty, the popular and well known Eight Immortals first appeared in the Jin dynasty (金朝). The art of the Jin tombs of the 12th and 13th centuries depict a group of eight Taoist immortals in wall murals and sculptures. They officially became known as the Eight Immortals in the writings and works of art of the Taoist sect known as the Complete Realization (Quanshen). The most famous art depiction of the Eight Immortals from this period is a mural of them in the Eternal Joy Temple (Yongle Gong) at Ruicheng.
The Eight Immortals are characters found throughout Chinese folklore and were actually mortal beings until they performed kind deeds, had miraculous accidents or, in one case, by being drunk in the right place at the right time! The Eight Immortals are portrayed as being Taoist (also referred to as Daoist ), and represent the rich as well as poor, the noble as well as humble and generally helping nature. Unlike a lot of folk stories, the Immortals were both male and female.