What's the difference between duality and metaphor?

Duality is a rhetorical way to express opposite, similar or related meanings with two phrases or sentences with the same structure, equal words and symmetrical meanings. Duality, commonly known as antithesis, is called duality in rhymes such as poetry, music and fu.

(1) dual characteristics

Two phrases or sentences with equal or roughly equal words, the same or similar structure, and related or opposite meanings are symmetrically arranged together.

(2) the type of duality

According to the content, it can be divided into positive pair, negative pair and string pair.

Right-to-right: the dual form of similar, similar, complementary and contrasting meanings of the upper and lower sentences. For example, birds in captivity miss the old forest, and fish in the pond miss home.

Objection: the dual form of the opposite or opposite meaning of the upper and lower sentences. For example, fatigue can rejuvenate the country and leisure can die.

Series pair: Also called "flow pair". The meaning of the upper and lower sentences has the dual forms of inheritance, progressiveness, causality, hypothesis and conditionality. For example, reading is like breaking thousands of books, and writing is like god's help.

"Bi Xing" is a concept with rich meanings and many ambiguities. Mao Heng's so-called "Xing" in the Western Han Dynasty includes two situations. One means "initial" role. The Exegetical Biography of Mao Poetry says, "Xing, Qi also." It's an emotional effect caused by objects. Objects and emotions are not necessarily linked by content, but sometimes only by phonemes. "Xing" in Mao Zhuan has another meaning, which refers to a complicated and obscure metaphor. In Biography of Poetry, Zhu said, "If you are interested, you should compare with other things" and "If you are interested, you should first say other things to arouse the words you are reciting." Explain the meaning of Bi Xing simply and accurately. "Bi" refers to the introduction of figurative objects through analogy association or anyway association, and "writing something adds meaning"; "Xing" means "passion for touching things", and "other things" is the scenery described in the poem, and this kind of scenery must contain the poet's feelings when touching things. "Xing" is a more subtle and euphemistic expression than "Bi".

Bixing classification:

It originally contains two rhetorical devices, namely "Bi" and "Xing", but when people talk about classical poetry and folk songs, they often refer to "Bi Xing", which is mainly used as a metaphor and sometimes refers to the method of "Xing Xing". Because "Xing Xing" has the function of arousing and associating, it is often placed at the beginning of a chapter. At the beginning of the two chapters of the Book of Songs Feng Weimang, the technique of "Xing" is used: "The mulberry is not falling, and the leaves are Mao." "When the mulberry falls, it falls yellow." The content of Feng Wei's Cutting Tan in the Book of Songs satirizes the ruler's living expenses, and every paragraph in the poem begins with cutting Tan. The poem "Peacock Flying Southeast" by Han Yuefu begins with "Peacock Flying Southeast and Wandering Five Miles", which uses concrete images to render the atmosphere, stimulate readers' imagination, create a sentimental artistic conception, and also cause the following stories, which plays a leading role in the whole article.