First, poetry often uses figurative language such as metaphors, similes, and personification that can be hard to understand. Second, poets often use unconventional grammar and syntax, which can make the meaning of the poem more challenging to grasp. Additionally, poetry often explores complex themes and emotions that can be difficult to interpret or relate to. Finally, the reader's personal experiences, beliefs, and background knowledge can influence their interpretation of the poem, making it a highly subjective experience that varies from person to person.