In the Zhou dynasty, three thousand miles along the river guaranteed eight hundred springs.

The story begins with Jiang Ziya's willingness to fish. It is well known that Jiang Ziya fishes with a straight hook. As a result, everyone thought it was a man of God (in ancient times), so Zhou Wenwang rushed to invite Jiang Ziya out of the mountain, and Jiang Ziya asked Zhou Wenwang to carry him back. Then King Wen carried him back and took him to the door. As a result, he took 808 steps, so Jiang Shangbao guaranteed the national luck in 808.