Poetry can be so unappreciated sometimes. It can be taken as dark, or depressing, when it could just simply be the author's attempt to get their point across, or express them selves. Poetry to me is an art, and can be used to glorify God.
The poem at the top of the page is pretty self explanatory, but some can be very confusing. Some poetry, is written with out a meaning though, so you can make it have any meaning you want it too.
Now, I will admit that there is some very dark poetry out there... That is infact about death, and hate, and other sad things such as those, but you will come across things like that just because the world is the way it is now a days... But that doesn't mean that all poetry is that way. I myself, have written poetry that may seem dark at first glance, but once you read it you see that there is a message behind it, and it is not actually a dark piece of work.
Even your poetry can be glorifying to God :)
