Pretty good. I like the imagery and the rhythm in most places. You're a little uneven, though; in some places you have excellent flow, in others the flow is a bit strained. This poem needs to be tightened and focused a bit more--it tends to rattle around a bit--but you're off to a grand start.

One thing: the last line slaps you in the face and seems to scream "Wham! This is the meaning of the poem!" Be wary of this. Think of a way to essentially say the same thing, but rephrased. The rest of the poem is very ephereal, but that one line is so literal that it throws you off. Is there a more ephereal way to say it, one with more imagery, more showing instead of telling?

I'm not saying it's at all bad. These are just tips to help you take it from good to amazing. Try reading it out loud and just...reworking it. It's hard to explain how to tighten a poem; it's something that took me an entire semester to finally get a handle on, and I still don't have it down perfectly.

Wow, thats really good. ^_^