琴きん瑟しつ相あい和わす

expression

to be happily married; to go together like two zithers

Rare, classical idiom. Literally 'the koto and the shitsu harmonize', used as a metaphor for marital harmony. Found in literary or historical contexts.

• 「琴きん瑟しつ相あい和わす」という言こと葉ばは、夫ふう婦ふの仲なかが良よいことを表あらわす古ふるい表ひょう現げんです。

  The phrase 'kinshitsu aiwasu' is an old expression meaning that a married couple gets along well.