你若安好便是晴天你若不安便是阴天
[nĭ ruò ān hăo biàn shì qíng tiān nĭ ruò bù ān biàn shì yīn tiān]
It translates as 'If you're well, it's a sunny day; if not, it's a cloudy one.' This expresses that the mood and wellbeing of another person have a significant impact on the user, symbolizing how much they care about that person’s state.