病魂常似秋千索桥
[bìng hún cháng sì qiū qiān suŏ qiáo]
The nickname suggests melancholic mood associated with feelings of loneliness and desolation. The 'soul of sickness' (which means being frail or weak) swinging on a vine bridge evokes imagery of fleeting, unstable moments often accompanied by sorrowful tunes found in classical poetry.