凉情凉心凉世界空人空心空世界
[liáng qíng liáng xīn liáng shì jiè kōng rén kōng xīn kōng shì jiè]
It can be understood as three parts: 'cool/ indifferent feelings, cool/lost heart, cold world' followed by 'empty person, empty heart, empty world'. Overall it describes an extremely melancholic state where emotions are numb, there's no enthusiasm within the individual or around them, reflecting their desolation and sense of loneliness.