Describe symbolism in A Lost Lady by Willa Cather

Cather's novel can be interpreted to be an allegorical interpretation of society in general. Mr. Forrester, for instance, represents the west. At one time Mr. Forrester was young with a bright future before him. This time in his life would symbolize the early days of the west when people are just beginning to explore and tame the land. As Mr. Forrester gets older, he loses the money and life that once drew people to him. After the railroad is complete, the future of some towns that sprung up in the west are deserted because there is no longer any promise of money or jobs to draw people in.