(idiom) the reunion of a couple after a long separation or the restoration of a broken relationship; literally "a broken mirror joined together again"

the separation of husband and wife during war or turbulence, or the fear of being parted

(idiom) separation of a couple; literal meaning is a hairpin split in two and a mirror smashed to pieces; used to symbolize the breaking of a marriage

to reunite after a forced separation or broken relationship; literal sense describes a broken mirror being joined back together