Often, it's because poetry, albeit chopped up into lines, each representing an idea, unless enjambed, is written in sentences, much like prose. As such, those sentences warrant properly punctuated words. read more
In terms of reciting poetry, the punctuation is critical to it being read aloud as intended by the poet, with appropriate halts and pauses. There are several marks of punctuation used in poetry that are less common in prose. read more
Punctuation is important in poetry because of its meaning in prose. For instance, the inclusion of a period when no other line had one adds a striking finality. read more
Punctuation gives the reader a brief release in tension, allowing him/her to pause for a moment and consider what has been read so far. This is why you must be thoughtful in where you break the line because your choices will affect the reader’s experience of the flow and motion of the poem. read more