The duet speaks of the infinite but tragic like in between Chang'e and Houyi, who are according to the Chinese myth of the moon goddess, on which the film relies on. Viewing it reminded me on the scene in Singing from the Rain, exactly where the viewers is in uproar https://always-and-forever-mine48271.eedblog.com/37295237/5-essential-elements-for-always-and-forever-mine