等到天蓝再看海等到雨后见彩虹
[dĕng dào tiān lán zài kàn hăi dĕng dào yŭ hòu jiàn căi hóng]
'Wait until the sky is blue before watching the sea; wait until after the rain to see the rainbow.' It symbolizes patience and waiting for better times, suggesting hope and optimism for future events.