According to legend, in the Eastern Jin Dynasty, there was a rich man named Lang Gong in Donghai County, who was very famous. Fifty years later, Zhuo has nine girls under his knee, but no son. He is eager to have children. The following spring, Zhuo Da went to Mount Tai and came back to beg for a son. He passed Chezhuang Village at the foot of Dazong Mountain. In a deep sleep, the immortal holds a dream: Lang Gong, Lang Gong, this mountain has nine heads, so you won't go abroad to be a prince. Raise money to build a temple and have a son next year. Lang Gongzhuo was convinced when he woke up. After returning home, he took silver coins to build a temple on Dazhong Mountain, invited his younger brother, Lang Gongzhuo Xi, who had been a monk for many years, and brought several disciples to build a house to worship Buddha. The following year, Lang Gong had a son. Langgong was in a happy mood. He built a temple in Yangli, Fangshan, Lingyan Valley at the northern foot of Mount Tai. It was called Langgong Temple all the year round, and now it is Lingyan Temple. In the late spring of the 12th year of Yonghe in Jin Mu (AD 356), Wang Xizhi, a native of Langya, came to Dazong Mountain. Lang Zhuoxi, the host of Langgong Temple, came to Wang Xizhi and asked him to write down the temple number. Wang Xizhi readily agreed and waved and wrote "Langgong Temple in Dazongshan".
Langgong Temple is located halfway up the mountain, where there are dense springs flowing and many scenic spots. There is a mountain stream in the southwest, and there is a cave under it, which is more than ten feet deep. It's called "Chaoyang Cave" and it is said to be the face of Lang Gong. With a little thought, you can appreciate the interest of "pure Zen in the cool breeze and bright moon" There are Biyun Temple, Guandi Temple and nuns commonly known as Si Xia in the west of the cave. There is a stream in front of the temple, and there is a bridge on the stream, which is called "Tianqiao". There is a cypress under the bridge, flat and vigorous, born in the cracks, like a black dragon flying with its head held high, known as the "evergreen pine." The beautiful forests and valleys here are fascinating, quiet and fresh. In addition, there are many scenic spots in the mountain, such as Juxian Pavilion, Jiubu Ladder, Xianrenjiao and Foye Cavern, which add many gorgeous colors and heavy cultural connotations to Dazong Mountain and Langgong Temple.
Now Langgong Temple has entered a comprehensive development with a total investment of about 300 million yuan. After the completion of the project, it is estimated that the number of tourists will remain at 6,543,800+0,570, and will increase year by year, reaching 657,000 person-times per year in 2022. The annual output value of this project is about10.5 million yuan, and the profit and tax are about10.6 million yuan. Relying on the landscape of Dazong Mountain and Langgong Temple complex, the project mainly focuses on tourism blessing and meditation vacation, and has the functions of cultural experience, fitness and folk custom collection. It is a new Buddhist cultural tourist area with distinctive features, and will become the largest Buddhist tourist scenic spot in southern Shandong and northern Jiangsu after completion.