What does emotion can be contagious in a poem mean?

The phrase "emotion can be contagious in a poem" suggests that emotions expressed in a poem can be conveyed to and experienced by the readers. When a poet effectively captures and conveys emotions in their writing, readers can empathize and feel a sense of connection with the emotions being expressed. This contagious aspect of emotions in poetry highlights the power of words and the poet's ability to evoke emotional responses in their audience. It emphasizes how poetry can transmit feelings and create shared experiences among readers.