1. In the history of China, the saying that the emperor's grace lasts forever can be traced back to the ancient feudal society. At that time, the emperor was the supreme ruler of the country, representing the destiny and theocracy, and was the symbol and representative of the country. The emperor's kindness is regarded as a godsend, so people often use "the emperor's kindness lasts forever" to express their gratitude to the emperor.
2. In addition, the saying that "the imperial favor endures forever" is also related to the traditional culture of China. In the traditional culture of China, the emperor is regarded as the representative and model of cultural inheritance, and his behavior represents the image and culture of the country. Therefore, people often use "the emperor's kindness lasts forever" to express their admiration and gratitude to the emperor, and it is also a spur and encouragement to themselves.