It was originally considered as a portrayal of the vicissitudes of the ancient road in western Beijing. I only inferred from the author's background at that time, but the scenery is very common in Xijing area and near the northwest. Through research, it is found that Jiuyuan Village, where the authors' former residences are located, is the intersection of the "Wang Ping Ancient Road", which passes through the towns of Wang Ping, Datai, Muchengjian, Zhuanghu Village, Qianjuntai, Zhangjiacun and Qilifen in Mentougou District and joins Jingxi Avenue in Xiang Jun Township. Jiuyuan Village consists of Jiuyuan Village, Dongluopo Village, Xiluopo Village and Qiaoerjian Village. Ma Zhiyuan's former residence is in Xiluopo Village, facing east and west. It is a big quadrangle. In front of the former residence is a small bridge with flowing water. On the screen wall in front of it is written "Former Residence of Ma Zhiyuan". So this may also be a portrayal of the author's hometown.