The duet speaks of your infinite but tragic like involving Chang'e and Houyi, that are depending on the Chinese myth of the moon goddess, on which the film is based on. Observing it reminded me of the scene in Singing during the Rain, wherever the audience is in uproar at https://zanezvpic.eedblog.com/37297624/an-unbiased-view-of-always-and-forever-mine