What does the Song of Eternal Sorrow mainly say?

Song of everlasting regret mainly tells the love tragedy between Emperor Xuanzong of Tang Dynasty and Yang Guifei;

When Yang Yuhuan was 15 or 16 years old, she was beautiful, born with beauty and superior educational environment, which made her have a certain cultural accomplishment, graceful personality, proficient in temperament, good at singing and dancing, and good at playing the pipa.

In July of the 22nd year of Kaiyuan, Princess Xianyang, the daughter of Emperor Xuanzong of the Tang Dynasty, held a wedding in Luoyang, and Yang Yuhuan was also invited to attend. Li Mao, the younger brother of Princess Xianyang, fell in love with Yang Yuhuan at first sight. At your request, Emperor Xuanzong of the Tang Dynasty wrote a letter that year, naming her as the longevity princess. After marriage, the two are extremely sweet. Later, Tang Xuanzong was greedy for beauty, preferring to take the world by storm rather than violate it. Even if it is incest, she will be her favorite Yang Guifei.

Yang Yuhuan and Li Longji have the same hobbies, like music and dance. They went to the pear garden founded by Li Longji for exercise. She took the lead to bow down, and all the disciples in the pear garden bowed down. Under the pear tree, Li Longji is recognized as the granddaddy of the pear garden. Li Longji personally wrote Colorful Feathers, and Yang Yuhuan danced to please Li Longji. The two were infatuated, and Li Longji was greatly impressed: "I got Yang Guifei and got the treasure."

In 755 AD, An Shi Rebellion broke out. On July 15 of the following year, Li Longji fled to Mayi post. The accompanying soldiers executed Prime Minister Yang and forced himself to commit suicide, which is known in history as "Mayi mutiny". Li Longji, an old man, lost his imperial power and gained a more real understanding of life. He misses his beloved princess even more, and he can't control himself. He even cried with the portrait of Yuhuan.

Li Longji (September 8, 685-May 3, 762), the grandson of Tang Gaozong and Wu Zetian, the third son of Li Dan in Tang Ruizong, also known as Li Sanlang and his mother Dou Defai. From the first year of congenital (7 12) to the fifteenth year of Tianbao (756), he abdicated as the emperor's father because of the Anshi rebellion. He was the longest-serving emperor in the Tang Dynasty and also the emperor in its heyday.

In August of the fourth year of Tianbao (745), Yang Yuhuan was registered as an imperial concubine. Li Longji tried her best to please the imperial concubine. In order to cater to her love of clothes, more than 700 people specially served the imperial concubine to make clothes for her. In order to let her eat her favorite litchi, Li Longji also ordered the opening of a thousand miles of Gong Li Road from Lingnan to the capital Chang 'an, so that litchi could be quickly transported to Chang 'an by fast horses in time. With Yang Guifei, the wind of luxury in Li Longji is becoming more and more prosperous. In order to curry favor with the emperor, ministers, nobles and imperial families voted for Yang Guifei one after another, stimulating more bureaucratic nobles to curry favor with him. His younger brother Yang also rose to the highest position and became the prime minister of the Tang Dynasty. Yang Guifei's sisters also benefited. My sister was named Mrs. Korea, the third sister was named Mrs. Guo and the eighth sister was named Mrs. Qin. Other brothers were also rewarded and became senior officials in North Korea. Yang's strength is unparalleled, and the glorious period of brother and sister also laid the groundwork for the tragic ending in the future.

Under Yang's autocratic power, the whole Tang Dynasty began to be chaotic. It can be said that the decline of the Tang Dynasty was wrong, but the Yang brothers and sisters, especially Yang, did not play a positive role. His evil deeds did not bring good luck to his sister, but sent her to the point of no return. Beauty is not a sin, but a cause. Under Yang's rule, the first is the chaos of state affairs. The political chaos in North Korea has affected the national economy.

In his later years, Li Longji was unhappy. On April 5th, the first year of Baoying (May 3rd, 762), Li Longji died at the age of 78. Buried in the Tang Taizong mausoleum. In the same year, Hengli died after a long illness.