天晴心晴天阴心凉
        
            [tiān qíng xīn qíng tiān yīn xīn liáng]
        
        
            "When the sky's clear my heart is clear, when the sky turns overcast my heart cools": Describes the emotional state closely tied to environmental changes like good weather bringing happiness while gloomy weather causes sorrow, reflecting how external conditions affect one's mood.