Dragon and Tiger Celestial Master

According to "The Family of Han Celestial Masters", before his death, the ancestor Celestial Master Zhang Daoling gave his son Zhang Heng a sutra urn, seal, and sword, saying: "I met the Supreme Master and personally taught him the Taoism. This article is the general leader of Sanwubu Gang. He is the most important person. He has only one son for generations. My position will not be passed down to the descendants of my family." Since then, these three tokens inherited by the ancestor Celestial Master have become the evidence of the inheritance of the Celestial Masters of all generations. Among them, the urn has been passed down by heavenly masters from generation to generation, recording anecdotes and strange records from all over the world, as well as the true words of exercises and techniques, which are contained under the sky and above the earth. This vase has not been heard from since the death of Heavenly Master Zhang Yuchu. This urn is called: Dragon and Tiger Celestial Master's urn.