1. Rhyme: Every sentence in the poem rhymes, which makes the whole poem read more harmoniously and smoothly. For example, "moon" rhymes with "festival" and "flower" rhymes with "home", which makes the rhyme of poetry more beautiful.
2. Tone: The syllables in the poem are high and low, and they are light and heavy, forming an undulating tone. This change in tone makes poetry more rhythmic and musical.