你的世界怎么变黑了因为发光的人都走了
[nĭ de shì jiè zĕn me biàn hēi le yīn wéi fā guāng de rén dōu zŏu le]
Translating to 'why has your world become dark? Because the people who shone have left,' this conveys a sense of sadness and loss, particularly referring to someone feeling desolate after meaningful connections in their life have ended.