Final answer:
Repetition in poetry can take various forms such as the use of the same words or phrases, alliteration, assonance, and consonance, each of which serves to emphasize themes and add rhythmic and musical quality to the poem.
Step-by-step explanation:
Repetition is a common literary device used in poetry to emphasize a particular idea or theme. An example of repetition can be seen in the poem The Raven by Edgar Allan Poe, where the word 'Nevermore' is famously repeated at the end of several stanzas, creating a haunting and memorable rhythm. Alliteration is another form of repetition involving the recurrence of the same initial consonant sounds, such as in the poem 'There Come Soft Rains' by Sara Teasdale, where you might notice consonant sounds repeated at the beginning of words throughout the poem. Consonance and assonance are also forms of repetition, where consonant and vowel sounds, respectively, recur within a line or stanza. Consonance can be seen in the poem by Adrian Henry through the repetition of consonant sounds at the end of words, while assonance is evident in Poe's work when vowel sounds within words are repeated. These devices not only add a musical quality to the poem but also help to reinforce the message or mood the poet is conveying.