Yes. Down to Earth is so sad. It's about his parents divorce and how he want through his life. That's why in the song he says, "Mommy you're always somewhere, and Daddy I live out of town. So tell me how could I ever be normal somewhere. 당신 tell me this is for the best. So tell me why am I in tears. So far away and now I just need 당신 here". I almost cried everytime I hear the song, especially in the 2nd verse and 3rd verse.
