烟花易冷时为何哭泣灯火阑珊处为何流泪
[yān huā yì lĕng shí wéi hé kū qì dēng huŏ lán shān chŭ wéi hé liú lèi]
A poignant expression combining two metaphors from traditional poetry. ‘Fireworks easily turn cold,’ indicating how something dazzling quickly fades, and questioning why one cries when left alone at a quiet lantern-filled area, expressing feelings of loneliness after moments of joy or reunion.