Rhyme and rhythm are key elements in a poem. They add musicality to poetry and serve as the backdrop against which the ideas and imagery can flow. The main difference between rhyme and rhythm is that rhyme is the correspondence of words and syllables while rhythm is the pattern of the poem, marked by stressed and unstressed syllables.
The strong accent of the rhyming captivates the reader and lifts the story above its prose statement into poetry. Rhyme is the matching of vowels and the coupling of vowel sounds. Like rhythm, it is a kind of recurrence - but rhyme has a recurrence of sound as well as beat.