情如侃侃流水情如烈火炽热
[qíng rú kăn kăn liú shuĭ qíng rú liè huŏ chì rè]
Describing affection, 'Like Gushing Water and Passionate Flames'. This conveys that love can be serene like flowing water or fierce and passionate like flames, highlighting two contrasting aspects of romantic emotions.