I like the details and how the story is told. Some good use of language to project a strong visual.

Unfortunately I don't like poems that rhyme. But that's about it.

EDIT: I lied a bit. If this was a song / spoken rhyme over a beat, I would like it a lot. When I write poetry, I don't rhyme but when I rap, then I rhyme.

Nice work! I think it's good how you take the mythical image and use it to explain a natural phenomenon. If you ask me, that's one of the great things about literature - the ability to give mythic (for lack of an apter word) origins to such phenomena. The fact that you choose poetry as the medium to express this idea of yours ties in with older creation stories, as a lot of old oral poetry deals with origins and creation myths. If you're interested in going down that line, I'd recommend having some fun with antiquating your language (all the thees and thous!) to enhance this effect! I can also recommend some poems you might enjoy reading as well!

Also, I wouldn't worry if readers don't like poems that rhyme. Personal preferences are in no way a sign that your work is bad! In short, good piece of work! Thanks for sharing!

I love it! And yeah the scientific way is boring, I love the rhyme, how each verse links with the previous and, I love the emotion in it too, how the unicorns cry and make the soil wet, keep it up