What does the second couplet mean when mountains are high and rivers are long?

The mountains are high and the rivers are long. The second line is about the rivers and rivers.

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Couplets, also known as couplets, door pairs, spring stickers, spring couplets, antithetical couplets, couplets, etc., are written on paper, cloth or carved on bamboo or wood. , dual sentences on pillars. Couplets are neatly contrasted and harmonious, and are a unique Chinese art form that uses one word for one sound. Couplets are treasures of Chinese traditional culture.

Origin of development

Couplets are also called antithetical couplets, door pairs, spring stickers, spring couplets, antithetical couplets, peach charms, and couplets (because they were often hung on the pillars of the halls and houses in ancient times). (named), etc., is a kind of dual literature, which is said to have originated from Taofu. Another source is spring couplets. The ancients often posted the word "Yichun" on the first day of spring. Later, they gradually developed into spring couplets, which express the Chinese working people's good wishes to ward off evil spirits, eliminate disasters, and welcome good fortune.

Couplets are dual sentences written on paper, cloth or carved on bamboo, wood, or pillars. The words are concise and the meaning is profound, the contrast is neat, the oblique and oblique are coordinated, the number of words is the same, and the structure is the same. It is a unique art form of the Chinese language.

Parallel prose and rhymed poetry are the two direct sources of couplets. In the process of its own development, couplets also absorbed the characteristics of ancient poetry, prose, lyrics and music. Therefore, in addition to verse and parallel prose, the sentence patterns used in couplets also include ancient poetry, prose, and imitation of lyrics and music. Different sentence patterns have different applicable rhythms and different leniency and severity. Among them, the rhythmic verse style has the strictest requirements, while the archaic verse style requires smoothness at the end of the sentence, but other positions are not restricted.

Rhythm and couplet stage

Rhythm and couplet is a couplet in metrical poetry. This style of poetry, also known as modern poetry, was formally formed in the Tang Dynasty. But its origins began in the Wei and Jin Dynasties. During the Cao Wei Dynasty, Li Deng wrote ten volumes of "Sheng Lei" and Lu Jing wrote five volumes of "Yun Ji", which distinguished clear and voiced sounds and Gong, Shang, Jiao, Zheng and Yu sounds.

In addition, Sun Yan wrote "Erya Sound and Meaning", using Fanqie notation. He is the founder of Fanqie. Generally, five or seven-character rhymed poems are composed of eight sentences, with two couplets in the middle, commonly known as chin couplets and neck couplets. They must be in opposition, and the sentence structure, rhythm, and meaning must be opposite. This is the standard legal couple.