空城空心空世界亦悲亦欢亦无惗
[kōng chéng kōng xīn kōng shì jiè yì bēi yì huān yì wú niē]
'Empty city, empty heart, empty world, both sorrowful and joyful with nothingness in between'. It vividly paints the feeling of isolation and desolation as well as contrasts various emotional extremes one may experience when everything seems to lack essence or substance.