Literary metaphors are figures of speech that compare two unlike things directly, suggesting that one is the other. This comparison helps to create vivid imagery and deeper understanding in writing. For example, saying "time is a thief" implies that time steals moments from our lives, enhancing the reader's perception of its fleeting nature. Metaphors are commonly used in various forms of literature, including poetry, novels, and speeches. They can evoke emotions and paint pictures in the reader's mind, making complex ideas more relatable. Famous authors like William Shakespeare and Emily Dickinson often employed metaphors to enrich their works and convey profound themes.