As I was searching for the piano sheet of Bella's Lullaby by Carter Burwell from the movie Twilight, I stumbled upon this very beautiful piano piece "River Flows in You" by a well-known Korean pianist Yiruma. I think it's a very nice piece and I want to play it on piano. It's just so sad that some users in youtube have associated this piece as Bella's Lullaby but actually, it's not! Yiruma is a very good pianist. (aiyo, how I wish I could play that good too... someday... haha! well, practice makes perfect. ^___^ ) .
Here's a piano tutorial of River Flows in You by Yiruma from MyPianoTV Channel: