Sometimes the stars

This is a music video (I believe) that walks around with a little girl. The whole thing has no dialogue just music and the animation. But the story is great this little girl has a necklace that is a star with the light going out. I take this as losing this important part of her (hope, love, etc) and then she gets on a train. taking her to different places but she never gets off and then she's by herself. all these place where people get off where it didn't work for her (it didn't bring the light back). Then the train flies off the rail and down a cliff she falls and the train breaks around her. Its her falling deeper in this problem she has and finds herself all by herself no train. Then all of a sudden a light come out of no where and she see's a little girl sitting by herself who is covered in light and touches the star. Then they run off the screen and you don't see them anymore. I believe that little girl is what she was missing a friend who fell in the same pit she did and instead of lighting her star she sticks with her and then they go on their way. It's a beautiful story where you see someone break and fall apart and then someone coming up beside them in the same mess as them.