The origin of the idiom: "Historical Records Biography of Huaiyin Hou": "The book was caught at the door, and many floating mothers drifted. A mother saw the letter and was hungry, so she ate it, but it drifted for dozens of days. " And: "trust the country, if you drift away with your mother, give 1000 yuan." Han Xin, the great general who helped Emperor Gaozu paint the world, was in a very difficult situation without success. At that time, he often fished at the gate, hoping to solve his life with good luck. However, this is not a reliable way after all, and we should always be hungry. Fortunately, where he often fishes, there are many floating mothers (old women who clean silk floss or old clothes and old fabrics) working by the river. One of them sympathized with what happened to Han Xin and kept giving him relief and food. Han Xin thanked the hardworking and hard-working floating girl for her kindness and told her that she would be rewarded in the future. Floating mother was very unhappy at Han Xin's words, saying that she would not be repaid by Han Xin in the future. Later, Han Xin made great contributions to Hanwang and was named King of Qi. Remembering that he had been indebted to his wandering mother before, he ordered someone to send her food, a table and even a thousand and two hundred gold to thank her. This idiom comes from this story. It means: don't forget that even a little help is valuable when you are in trouble, although you get little benefit; It is reasonable to reward welfare people heavily when they have the ability. When using this idiom, we must thoroughly understand its meaning. First of all, a sincere and helpful person will never want anything in return. Second, the relief of the rich to the poor is a donation. Even if the poor really succeeded in repaying him one day, it could not be called "a meal of gold". Third, the most valuable thing is to help others out of love and sympathy under very difficult circumstances. In the eyes of others, such help is really a "meal" worth thousands of yuan. Example of idiom: Ma Zhou said, "The poem on the wall is still there, don't forget it." (Ming Ling Mengchu's "Two Moments of Surprise" Volume 5) Source supplement: "Historical Records Biography of Huaiyin Hou": "The letter was caught at the city gate, and many floating mothers drifted. A mother was hungry when she saw the letter, and the letter was eaten, but it drifted for dozens of days. To believe in happiness is to float my mother and say,' I will repay my mother.' ..... Believe in your country, call your mother and give her a daughter.