Goodbye, dear Dream Girl, I will go far away to find the meaning of the future.

This expresses a boy's secret love for a girl. It is his spiritual pillar to keep the other person in his heart and miss her. "Goodbye, dear Dream Girl, I'm going far away to look for the future ..." This familiar lyric comes from the song "Out of the Window". 1999, after the release of Out of the Window, this song spread all over the country, and people of all ages hummed it, and the singer Li Chen became famous.