See "Yanmen Prefect's Journey" by Li He of Han Dynasty.
The sound of the trumpet: the sound of the trumpet, used by the army as a command; the sentence "Stop": Most of the area near the Great Wall in the north is purple-brown soil, so it is called "Purple Stop". Yan (yānyan): the same as "rou". Rouge: red cosmetics. The general meaning of these two sentences is: In the solemn autumn scene, the sound of horns fills the sky and the fields; in the twilight, the soil is like rouge, emitting a thick dark purple.
The two lines of the poem describe both a scene and an event: In the late autumn when thousands of trees were falling, encouraged by the sound of horns, the soldiers of the Tang army had high morale and fought hard, fighting with the enemy from day to dusk. The brown soil was sprinkled with bright red blood, and the purple-red color appeared even more intense in the night fog. This gloomy and solemn atmosphere sets off the tragic scenes of the battlefield. The poems can be used to describe the unique scenery inside and outside the Great Wall, taking its meaning from the bleak sounds of autumn and the tragic sounds of trumpets; they can also be used to describe war scenes.
. "The sound of the trumpet fills the autumn sky, and the stuffed bird's fat condenses into purple at night." These two sentences closely follow the sentence "Jia Guang", depicting the soldiers who defended the city rushing out of the city gate and fighting with their lives. The author does not describe the fighting scene between the two armies from the front, but uses the auditory and visual aspects to describe the fierce and tragic battle. Due to the huge disparity in numbers and helplessness, they had to retreat to the isolated city. The last sentence points out the season, and the description of this desperate fight with a powerful enemy does not mention the scene of the clash of swords. It is only hinted at by the sound of horns filling the sky in the autumn scenery. "The sky is filled with the sound of trumpets", isn't it the sound of drums and trumpets that urges the battle, the sound shakes the heaven and the earth! The next sentence explains the location of the battle. "Purple" refers to the purple soil near the Great Wall. "Yanzhi" means "rouge", which refers to the color of blood shed by border guards, implying heavy casualties among border guards. The reader seems to see the blood stains as red as rouge, condensing into a purple under the heavy night. The word "man" expands the scene of fierce battles and reflects the heroic momentum of the border guards in killing the enemy; the word "condensation" vividly depicts the result of the border guards' dripping blood flowing all over the ground, that is, the great sacrifice. It highlights the intensity of the battle. As time goes by, it has merged into the empty and desolate desert. The color of the Great Wall is purple, so it is called purple plug. The poet used it to express the condensation of blood. The idea is novel and the image is vivid. These descriptions of the cold and miserable scenery on a cold night set off the emergency situation of the isolated city being trapped, which naturally transitions to the later description of the border guards who make surprise attacks at night. This artistic conception is beyond the ordinary. From "facing the sun" to "night purple", it also naturally expresses the fierce battle from day to night. This is a vivid battle scene.
------------------------------------------------ -------------------------------------