The phrase 'poles apart' came from a story in the Biography of Wei Gongzi in the Records of the Historian. The story said that Wei Wuji, the son of Wei, wanted to travel, but his followers thought that it was safer to take the southern route than the northern route. Therefore, Wei Wuji listened to the advice of his followers and took the northern route. As a result, he ran to Chu. Wei Wuji realized that he had gone the wrong way, but he still wanted to return to Wei, so he began to look for a way to return to Wei, and finally found a way in the opposite direction and finally succeeded in returning to Wei. The idiom "poles apart" means that one's actions are exactly opposite to one's purpose. It means that one's actions are completely opposite to one's purpose or that one's actions are unrealistic and in the wrong direction. This idiom is often used to describe people or things that are working in the wrong direction and ultimately fail to achieve their goals.