He also knew how to empty out seas and remove mountains from one place to another. So he went to the Wu-I hills and rescued his mother, whom he took on his back and carried away. They stopped to rest on a flat ledge of rock. Then the mother said: "I am very thirsty!" Oerlang climbed down into the valley in order to fetch her water, and some time passed before he returned.
Ultimately receiving investiture at the hands of the Tang Court, the sovereign of the colony took the name of Tsuying, King of Pohai, and his son, Wu-i, sent an envoy to Japan in 727, when Shomu was on the throne.
The second daughter of the Ruler of Heaven once came down upon the earth and secretly became the wife of a mortal man named Yang. And when she returned to Heaven she was blessed with a son. But the Ruler of Heaven was very angry at this desecration of the heavenly halls. He banished her to earth and covered her with the Wu-I hills.