Introduction to Jiang Taigong's Fishing: Jiang Taigong fished, and those who wished to take the bait came from such a historical allusion: Shang Zhou was tyrannical, and King Wen of Zhou was determined to overthrow the tyranny. Grand Duke Jiang Ziya was ordered by his master to go down to the lower world to help King Wen. But Jiang Ziya felt that since he was half a hundred years old and had no friendship with King Wen, it would be difficult for him to be appreciated by King Wen. So on his way back to the capital, King Wen fished by the river with a straight hook without bait. Usually fish hooks are curved, but Jiang Ziya used straight hooks without bait and caught a lot of fish. When King Wen saw him, he thought he was a strange person, so he took the initiative to talk to him. He found that Jiang Ziya was a unique talent, so he recruited him into his account. Later Jiang Ziya helped King Wen and King Wu overthrow the rule of Shang Zhou and establish the Zhou Dynasty.