Poetry uses elements like rhythm, sound, imagery and form to express ideas and emotions. Rhythm gives poetry a musical flow, while sound devices like rhyme and alliteration make poems pleasing to hear. Imagery creates vivid pictures using details that appeal to the senses. Poets employ figures of speech like similes, metaphors and personification to craft descriptive imagery. Well-chosen words are arranged into lines and stanzas to convey meaning in poetic form.