Dang, another fantastic song! This one works so well because it lives up to its name. It's not even so much galaxy, as just wonder in itself. You can never go wrong in that. I especially love songs that go on this long. You always have good stuff going on.
It does seem to put you in a trance. Maybe that's why I like it so much... Anyway, there's always no parts to this song. It makes you think about the wonder of the Universe. Galaxies are some of the largest things you can think about. Wonder shall live on!