Dai Xizeng (1899 ~ 2005, year 106) was a villager in Dajiashan Village, Liaoheyuan Town, dongliao county City, Jilin Province. In order to realize his beautiful scenery, he dug with pickaxe and shovel for 60 years, planted more than/kloc-0.00 million trees and afforested more than 40 hectares of barren hills. In 2005, he won the nomination award of the second China Top Ten Old People News selected by the Old People Daily!

Liang Heng, a writer, visited him and wrote the article "The Castle Peak is Never Old", which has been selected into the sixth grade Chinese textbook.

This paper introduces an old farmer from Shan Ye, who miraculously created an oasis in northwest Shanxi during 15 years, and created infinite value with limited life. The meaning of life has been infinitely expanded in the vast green hills. It will be immortal with the green hills and will not grow old with age. This ordinary old man made me realize that Qingshan will not grow old.