童话说雨后就会有彩虹却没说它也会转逝成空
[tóng huà shuō yŭ hòu jiù huì yŏu căi hóng què méi shuō tā yĕ huì zhuăn shì chéng kōng]
Fairy tales tell us a rainbow follows the rain, but they don’t mention it can quickly disappear. It speaks of idealized endings not always lasting, reflecting the ephemeral nature of happiness following tough times.