By inserting an idiomatic phrase into your writing, you force the reader to shift from thinking literally to abstractly. This can help keep the reader stay focused and excited, as they must activate a more conceptual part of their brain in order to comprehend the idiom's meaning.

Why is idiomatic important?

Idioms are used daily and repeatedly by native speakers of English Language. ... Learning idiomatic expressions helps non-native speakers of a language become more fluent, and sound more native-like. Learning idiomatic expressions increases the vocabulary and lexicon of the English Language learner.

Why idioms and proverbs are important?

The combinatory possibilities of words or multi-word chunks and expressions like, collocations, proverbs, idioms help attaining automaticity and fluency in language, making the user sound natural. Idioms and proverbs in English are sets of words that have specific meanings, draw out the essence of the English culture.