Liang Renfang of the Southern Dynasties wrote in "Shu Yi Ji": "The sharks are Quanxian, also known as Quanke. ... There is the Dragon Thread Palace in the South China Sea. Where Quanxian weaves yarn, the yarn is as white as frost.
"When the First Emperor came to the throne, he passed through Li Mountain and conquered the whole country. The whole world sent more than 700,000 people to visit him, passed through three springs, lowered copper into the coffin, and filled the palace with hundreds of officials, rare utensils, and strange treasures. He ordered the craftsmen to make crossbow arrows and shoot at those who came close. Use mercury to form hundreds of rivers and seas, imbuing it with structures, astronomy at the top and geography at the bottom. Use mermaid ointment as a candle to save those who are immortal for a long time. "
Purpose: Once upon a time, the sea was difficult to overcome, except for Wushan, it was not a cloud.
