Not bad. Not great, but not bad either. I'll point out now that I have no problem with the subject or the words. In fact, the metaphor used throughout is cosistently well done.
In fact, the only problem I have is the rhythem. Try reading the poem aloud, and you might see what I mean. I won't give an example of how I would have achieved this, as it's your poem, and I suspect I'd lose some of the things that make it unique. All in all, not bad. Not bad at all.
Seeing as I now have three short stories posted, I figure I may as well put all of them in my bio, so go there for links to "The Lab", "Daemon" and "Afterlife". Additionally, you should read my fic,
The Crystals of Narlkant