Beauty in poetry depends mainly on expression and rhythm. Expression refers to the use of vivid and imaginative language that appeals to the reader's senses and emotions, while rhythm refers to the pattern of stressed and unstressed syllables in the poem.
A well-written poem will use expressive language that creates vivid mental images and elicits strong emotions in the reader. This can be achieved through the use of figurative language, such as metaphors, similes, and personification, as well as through the careful choice of words and phrasing.
In addition to expression, the rhythm of a poem plays a critical role in its beauty. A poem with a consistent and pleasing rhythm can create a sense of musicality and harmony, drawing the reader in and enhancing the overall emotional impact of the poem.
To summarize, the beauty of poetry depends mainly on the use of expressive language that appeals to the senses and emotions of the reader, as well as on the rhythmic pattern of stressed and unstressed syllables in the poem.