待到长虹隗日花飞尽
[dài dào zhăng hóng wĕi rì huā fēi jĭn]
'Waiting until the rainbow fades on a cloudy day' poetically describes a feeling of anticipation and longing, perhaps waiting for something beautiful to pass or coming to an end. It evokes a sense of melancholy but with a deep connection to natural beauty.