君如月妾如星
[jūn rú yuè qiè rú xīng]
Literally means 'You are like the moon and I am like the star', metaphorically comparing someone close to the user, perhaps a lover, family member, or admired person, to the moon. The speaker compares themselves to a smaller, more numerous heavenly body – suggesting the subject has a brighter and bigger influence on their life than they do on the subject's.