Wonderful! I love it!
Great song, however, I think its more Dance-Techno than trance.
Anyway, that sound you have at the begining is perfect! It is a great attention grabber, and makes your song stand out from the rest on newgrounds by far.
Another part, where there is a that wind noise and the piano around 1:50 , it creates such an air of calm and serenity. I could see it in a music flash. Some girl is running though a forest an right a 1:47 she jumps off a high cliff, Arms out, looking around her, looking at the beauty of the landscape, (Sort of in slow motion) When you think she is going to fall, right at 2:24 she lands on a cloud and runs along the sky. That part creates a quite vivid image of running free.
So in all, Great work! It so makes me want to dance!