落花枝に帰らず破鏡再び照らさず
Meanings
1
what's done is done; there's no use crying over spilled milk
Proverb meaning that once something is broken or lost, it cannot be restored to its original state. Literally: 'A fallen blossom does not return to the branch; a broken mirror does not shine again.' Used to express resignation or acceptance of an irreversible situation.
As the saying goes, a fallen blossom doesn't return to the branch and a broken mirror can't be made to shine, so there's no use regretting what's done.