你若是晴天我便是安好
[nĭ ruò shì qíng tiān wŏ biàn shì ān hăo]
Meaning 'If you're sunshine (positive/comfortable), then I am fine', it implies dependency and emotional mirroring. Like clouds parting for clear skies, the happiness and comfort of one party depend on the wellbeing of the other. There is a direct interdependence of emotions conveyed here.