落花枝に帰らず破鏡再び照らさず
らっかえだにかえらずはきょうふたたびてらさず
fallen blossom doesn't return to the branch, a broken mirror can not be made to shine
破鏡再び照らさず is read as はきょうふたたびてらさず (hakyoufutatabiterasazu) and means a broken relationship can never be repaired.
はきょうふたたびてらさず
hakyoufutatabiterasazu
らっかえだにかえらずはきょうふたたびてらさず
fallen blossom doesn't return to the branch, a broken mirror can not be made to shine