There is a blue mountain line to the north of the wall and a white waterline to the east of the city.

The blue mountains and white waterlines to the north and east of the Great Wall represent the following meanings:

"The mountains in the north are green, and the water in the east is white" is the opening of the Tang Dynasty poet Du Fu's Spring Hope, which expresses his yearning for the prosperous Tang Dynasty. This sentence describes Chang 'an, the capital of spring. Blue mountain peaks cross the north of the city, and white rivers surround the east of the city, forming a scene of recovery and sunshine.

Extended content:

1, Du Fu's "Spring Hope"

"Spring Hope" is another typical Fu poem of Du Fu in Tang Dynasty after "Liu Yichuan". The whole poem has more than 20 chapters, depicting a beautiful scene of Spring Festival, which is full of vitality and fleeting. This poem was once known as the "Luoyang Spring" which shaped the beautiful scenery of the imperial capital, and it has profound cultural background and historical significance.

2. The meaning expressed by "the north of the wall is a blue mountain range, and the east of the city is a white waterline"

This poem depicts the spring of the revival of all things with praise, which is fresh and clear, and brings readers a visual feeling of enjoying themselves. What it expresses is the praise of land and vitality, which is the precious ideological wealth of the Tang people.

3. Look at nature and be poetic.

The opening of Du Fu's ancient poem shows a pure, fresh, beautiful and beautiful spring. It not only has distinct geographical background characteristics, but also has a strong flavor of the times and literary spirit. Its images are broad and profound, which can often bring people peace of mind and shocking aesthetic experience.

4. Poetry expression skills

The phrase "the mountains in the north are green and the water in the east is white" shows Du Fu's superb poetic expression skills. He used metaphor, personification, exaggeration and other techniques to integrate magnificent mountain scenery and spring vitality into poetry with unique poetic language.

To sum up, the artistic beauty of "the mountains in the north are green and the water in the east is white" in Du Fu's poem "Looking at Spring" not only shows the poet's deep awe of the rich and beautiful capital, but also represents the peak of cultural poetry in the Tang Dynasty and remains in historical memory.