你的世界怎么黑了因为发光的人离开了
[nĭ de shì jiè zĕn me hēi le yīn wéi fā guāng de rén lí kāi le]
"Why did your world turn dark? Because the person who lit it up has left". This signifies feelings of sadness when someone important, whose presence brought joy and light, leaves, making the world seem bleak without them.