Answer:
1. Emphasizing the important points .
2. Tying the paragraph together .
Explanation:
Parallel structure is a literary device where two or more sentences with the same level of importance are connected (tied together) by the same writing structure, or the repetition of one or more words. Parallel structure is used to emphasize important points, to create contrast, to add rhythm, balance, and clarity to explain a subject. Parallel structure is often found in speeches, songs, and poems.