The Tang Dynasty was the most prosperous peak era in the history of China's feudal dynasties, and it was also the most prosperous era of poets and stars.
Among the bright stars, there is a young poet named Li He, who is far less famous than Li Bai, Du Fu and others. But his poetic style is unique, known for his ethereal and weird, and he uses "ghosts and fairies" to support the past and the present, so he is called "poetic ghosts" by later generations.
His famous quote"If there is love in the sky, the sky will be old"It is even more well-known, and is often cited by literati in the past dynasties, but in the entire Tang Dynasty, no one can write a couplet that matches its emotions and artistic conceptions, until a wine party in the Song Dynasty was casually said by a drunkard!
In 790 AD, Li He was born into a down-and-out aristocratic family in Changgu, Fuchang County, and was a descendant of Li Liang, the uncle of Tang Gaozu Li Yuan. Although his family is in the middle of the road, Li He has been ambitious since he was a child, wanting to revive the family business and shine on the lintel. He was gifted and intelligent, coupled with diligence and hard work, when he was 7 years old when he wrote poetry, he was as famous as Li Yi, the ancestor of Gongle Fu poetry. At that time, Han Yu, who was quite prestigious, was very optimistic about Li He, felt that he was a rare talent, and strongly recommended him to participate in the imperial examination. But when Li He went to Chang'an to participate in the Jinshi Ju, he was harassed by the villain, saying that his father's name was Jin Su, "Jin" and "Jin"."For committing the suspicion, Li He should avoid his father and not be allowed to raise the jinshi, so his examination qualification was cancelled. Li He was hit hard by this and became depressed. Han Yu didn't want to see a talent like Li He being buried, so he entrusted Li He to be a petty official in the Ministry of Rites. 
Li He has been a minor official for three years, his health is weak, and his career is not smooth, so he can only put all his energy and emotions on writing poetry. Seeing that he was working so hard to compose poems, his mother said distressedly: "It's okay for a son to vomit out his heart." It means, "My son has put all his energy and effort into writing poetry, and he really wants to vomit his heart out before he stops!" Later, this sentence also gave birth to an idiom, "painstakingly bloody", which has been passed down through the ages. In 813 AD, Li He resigned from the post of Fenglilang due to illness, and on the way from the capital to Luoyang, he had mixed feelings, feeling that he was full of talent and ambition, but there was nowhere to show it.
The laurel tree hangs autumn incense, and the soil flowers of the thirty-six palaces are green.
Wei Guan led the car and pointed to thousands of miles, and the sour wind in Dongguan shot his eyes.
The empty general Han Yue went out of the palace gate, and Yijun cleared his tears like lead water.
Declining Lan sent guests to Xianyang Road, if the sky is loved, the sky is also old.
The moon is desolate with a disk, and Weicheng has been far away. The whole poem exhausts the pain of the family and the country, the sorrow of the life experience, and one of the sentences "If the sky has love, the sky is old", it is a kind of sigh of helplessness about the world, although the sky is sunrise and the moon is not there, the situation is always new, and it will remain unchanged for eternity. But if the heavens are affectionate, they will still age. One sentence pushed this kind of pain of family and country and sadness of life experience to the top. 
As soon as this poem came out, it caused a sensation in the poetry circle at that time, attracting countless literati to recite it, and the sentence "if the sky is loved, the sky is also old" is to be quoted by countless literati and writers in all dynasties, although many people have tried to write the opposite couplet, but the emotion and artistic conception are too far from the couplet. Until the Song Dynasty, at a banquet where friends were met with literature, someone put forward the poem "If the sky is loved, the sky is also old", everyone competed for the next couplet, but there was no artistic conception and emotion that could match it. At that time, there was a literati named Shi Yannian, who failed repeatedly when he was young, and then finally got in, and was framed by the villain, and his career was bumpy, after experiencing the vicissitudes of the world, he was disheartened, and placed all his energy and emotions on the poetry and wine pastoral, indulging in the drunken dream of death every day. 
He was drinking at this time, and when he heard this sentence "If the sky is loved, the sky will be old", he remembered his bumpy life, and couldn't help but feel a lot of emotion, and casually said the sentence "The moon is like a hateless moon and the moon is full". As soon as Shi Yannian's sentence came out, he was shocked, and everyone admired it so much that they fell to the ground. This poem by the poet ghost Li He finally matched the wonderful couplet in the Song Dynasty. The sky is always sunrise and the moon is gone, and the scene is always new, and it will never change. But if the heavens are merciful, they will also age. The moon is always cloudy and unpredictable. If the moon does not have love and hatred, then it can be eternal and round.
Life is as fickle as the moon, and it is rare to be fulfilled. Maybe it's because Shi Yannian and the poet Li He have the same bumpy experience and understanding of the impermanence of the world, so they can be so skillful!