The meaning of this sentence is to express the sad fact of the China Eastern Airlines crash.
The original sentence is that the mountains are full of people, and there are no people in the mountains. The mountains are full of people who have not returned, and the mountains are full of sad people. When the flowers bloom in the coming year, it will be the time when the departed people return home. It expresses the sad fact that the China Eastern Airlines crash was a disaster for hundreds of people and hundreds of families. It expresses in one sentence that we have to accept this sad fact.
At around 14:38 on March 21, 2022, a China Eastern Airlines Boeing 737-800 crashed in the mountains near Shentangbiao, Mo_ Village, Nan Town, Teng County, Wuzhou City, Guangxi Zhuang Autonomous Region, causing Mountain fire. The rescue team immediately gathered and approached. MU5735 was originally scheduled to take off from Kunming Changshui Airport at 13:10 on March 21 and arrive at Guangzhou Baiyun International Airport at 14:52.