Whenever I picture the soundtrack for a dream, I would imagine something quiet and simple like this, but maybe not as accented. Like JoshuaHughes said, since you're writing an experimental piece that is supposed to reflect a dream, I wish it were longer, and even more experimental. Also, while the experimental genre would definitely include a minimalist piece, eventually I think this piece gets too monotonous. If you are actually trying to write something that's minimalist, I'd suggest including a lot more variance and development in your thematic material.
Overall, definitely an odd track in a genre I don't write or listen to a lot, but catchy in its own way.
David (R4R)