What is poetry?

Writing the reflection on this class has made me wonder what I really think poetry is. Yes, I've had a slight understanding of famous poems and understood that they could rhyme, or not rhyme, or make sense, or not make sense at all. So how is it that something can be poetry, while something cannot? The subjectiveness made me wonder about these things. So I began to think, what if poetry is to one person what crap is to another person? I believe that poetry is about as subjective as you can get when it comes to expression. It all depends on your style and how you see the world. I would love to be able to fluently read another language so I could understand the poetry of other cultures, and see the differences between what different people value in poetry and literature overall. So I have learned a lot from this class, including the idea that poetry could be a number of things (calligramme, a string of nonsense words, or a prose-y story), these things I would never have considered poetry before taking this class. But now I understand that it is subjective like nothing else, and the meaning behind the words all depends on the person who's reading it.