On the morning of February 13, at Xide Railway Station in Liangshan Yi Autonomous Prefecture, Sichuan Province, a group of students dressed in school uniforms and carrying backpacks boarded the No. 5633 public "slow train" in an orderly fashion. This train, which has quietly traveled the Chengdu-Kunming Railway for decades, has long been a "bus school" for children in mountainous areas to leave the mountains and pursue education.

　　The No. 5633 train travels through winding tunnels and bridges, carrying generations of students from Daliang Mountain, steadily heading toward the direction illuminated by knowledge