4539: Create your dream house and live there.
4540: Create a dream portal to a new realm and explore.
4541: Fly through space and meet an alien civilization, spend the dream learning their way of life.
4542: Have a baroque orchestra play a song you've never hear before. (for us music geeks =P)
4543: Create your own utopia.
4544: Hurl the Moon at Earth like a ball.
4545: Try to compose a piece, and remember it upon awakening.
That's all I got.