Introduction to the immortal longevity stone: This character "Shou" was written by Chen Tuan. It is 2.15 meters high and consists of four characters: "人", "Shou", "Nian" and "Feng", which means longevity as compared to Nanshan Mountain. Chen Tuan, whose courtesy name was Tunan and whose nickname was Fuyaozi, was a native of Bozhou, Anhui today. He was a famous Taoist priest in the history of Chinese Taoism, and was known as the "Ancestor Chen Tuan" in history.