Many years ago, Xu Zhi once reached out to Gu Wang on the most ordinary day. It was just a common kindness, but it became the only light in Gu Wang's life. Later, Xu Zhi realized that once the light falls into the darkness, it will be tightly held and will not give any chance to escape.
Concept: Light can illuminate darkness, but it should not be possessed and swallowed by darkness.