More than 1200 years ago, a great monk with a large number of Buddhist scriptures, agriculture books, medical books, architecture books and more than 80 craftsmen arrived at Japan by boat. They were welcomed by the whole nation. This great monk was the famous Jianzhen Master in Tang Dynasty. Jianzhen took 5 times sea-voyage eastward in 5 years, all failed and then he returned. In October 748, Jianzhen set the 5th eastward sail from Zhoushan Islands, but encountered with typhoon. He drifted to Zhenzhou, the southern tip of Hainan Island (the current Sanya). In the next year (AD 749), the pioneer monk of Dongshan Ridge, Lei Zhenhai, dispatched his disciples to greet Jianzhen. With the escort of Zhenzhou Biejia (an officer name originating from Han Dynasty), Feng Chongzhai and more than 800 soldiers, Jianzhen and other 17 people reached Wanzhou (the current Wanning) after more than 40 days’ hard trek. The day he arrived was a sunny day, with bird singing. All people came to escort Jianzhen and his team members. They mountaineerred, giant stone showing its way, mountain flowers blooming, and sea tide sound bursting. Lei Zhenhai master led hundreds of monks chanting, which made the 62-year old Jianzhen praised: "Now I’m on the Dongshan, I will rise again in the near future!” Then he led his disciples preaching and chanting in Dongshan for three days. Their chanting swung in the valleys without break in the next few days. Subsequently, Jianzhen went through hardships and returned to Yangzhou. He decided to start again, to sail eastward for the 6th time to Japan. He succeeded this time and later his this behavior was called "making a comeback".