凉心凉清凉时光空人空心空世界
[liáng xīn liáng qīng liáng shí guāng kōng rén kōng xīn kōng shì jiè]
Expresses deep desolation. It speaks of cooling off in every aspect - time, people, heart, and world, evoking feelings of emptiness, disillusionment, and melancholy.