About a year ago, I heard this song online for the first time, and until now, this song is still saved in my QQ Zone music box. I fell in love with it at once. That's because of its peculiarity as a novel piece of music. A little girl's voice was humming "draling" monotonously and repeatedly, but it was not boring at all, leaving much to be savored... Listening to it, the world gradually became quiet.