The culture of the Tang Dynasty flourished, literary creation became popular, and poetry works were also vast. Among the countless masterpieces, some depict magnificent rivers and mountains, some lyrically parting, and some express the pain of homesickness, which can be described as wonderful and full of affection.
In order to convey his own complex feelings, or the meaning of the object, or with the help of various rhetorical means, or to express sorrow with a happy scene, the author shows a delicate and evocative character image, highlighting the author's otherworldly embrace. The following introduction is that Xu Hun was bedridden and sick, and he wrote a poem of seven laws, and the words were overflowing with parting feelings.

Lying sickness
Tang Dynasty: Xu Hun
The cold window lights are illuminated by the moon, and Pema is hidden in the sky.
The dew has withered the willows, and the white clouds have long crossed the mountain wei.
It is difficult to send guests away in illness, and it is not appropriate to return home in dreams.
Only the books were sent, and the yan geese flew south.
After Xu Hun entered the army, he first served as a small official at the grass-roots level for many years, and then had the opportunity to return to the capital and become an inspector of imperial history, but unfortunately he returned due to illness not long after.
During the period of bedridden illness, the poet was in a depressed mood, and he had to stay up until the day he had his head, but he had to rest in bed for physical reasons. Every day in the face of the difficult to swallow medicinal soup, he felt more depressed and helpless. When his health improved slightly, he wrote a poem to record his mood at that time.
Because of his serious illness, the poet lay in bed from morning to night, unable to read and create, so he was extremely bored during the day and had to sleep heavily. At night, he was sleepy and kept looking at the ceiling. It was hard to wait until five o'clock, the moon oblique lights dimmed, but the sound of cars and horses shaking jade pendants was heard outside the cold window.
The poet heard this familiar voice and knew that this was the preparation of his colleagues for the early dynasty, but he could only silently lament, not knowing when his condition would improve, and he missed his relatives even more. "Alone and hidden" conveys the poet's miserable state of mind. The more difficult the time, the more you need others to send charcoal, but you can only endure the suffering alone in a foreign country.
The poet looks back on the experience of this half life, which can be described as difficult and bumpy, and he has suffered enough and planted his head. It was so easy to look forward to the end of the bitterness, and God seemed to be testing his perseverance again. "Qinglu has withered Qin Sailiu, and the white clouds and sky have long crossed the mountain wei", these two sentences use anthropomorphic techniques to express the author's situation of being stranded in a foreign land.
Seeing that the autumn dew withered away from the willows, Caizi's thoughts returned to his hometown with the white clouds, and the wei ferns in the mountain forest seemed to be waiting for the wanderers in the distance, but in the end it was an emptiness. Yueshan, here refers to the poet's hometown. The author pays great attention to the refining of words, and the words "withering and empty" convey both the meaning of desolation and the disappointment.
The neck joint is a famous sentence throughout the ages, "It is difficult to send a guest away from the sick, and it is not appropriate to return home in the dream." Occasionally, a few friends came to visit him, but soon they said goodbye to him, and the guests were already desolate, not to mention that the poet was still ill.
In his dream, the poet vaguely remembered the grass and trees in the old garden, so kind, and so strange, as if he had not cared about them for a long time, and he was also alienated by the other party. Even though the dream god often returns to his hometown, the poet also believes that this is not the right return, and the author adopts a progressive writing method, which is even more homesick.
The last two sentences are more affectionate, the township book wants to be sent, the station is rare, the spring swallow and autumn hong can still come and go freely, the poet smells on the pillow, but can not move casually, had to entrust a piece of longing to the feather of Nanfei.
The poet should feel the most helpless time in his life at this time, he is in a foreign country, he is seriously ill, his future is uncertain, he has no plan to return to the garden, and when he needs the most care, his friends have left him, and caizi is really desolate.
Xu Hun's Seven Laws of Emotion is sincere, expressing euphemisms, and the words are full of parting and homesickness, whether it is "alone" or "difficult to say goodbye", it reflects an extreme sense of loneliness.
The author uses Pema to the sky, euphemistically saying that he is bedridden and sleepless; and using lying down to smell the swallows and geese, implicitly highlighting the lonely state of mind, which can be described as superb skill, worthy of appreciation and collection! The poet had no choice but to enter the poem and wait for the reader to slowly appreciate it after a thousand years!