For the director, the film is not only a tribute to the grassroots cadres who have dedicated themselves to improving local living conditions, but also a reflective journey exploring humanity's relationship with nature.
"In the vast timeline that has shaped the Puruo Gangri Glacier, all of us — whether behind the camera or in front of it — are but a grain in the sea compared to its 700,000-year history," says Cai. He hopes the film can prompt deeper reflection on where humanity has come from and where it is headed.
Contact the writer at xufan@chinadaily.com.cn