Train Dreams
Significance of dogs.
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Throughout the narrative, both domesticated dogs and wild dogs (i.e. wolves, coyotes) represent the power and presence of nature in Grainier's life. There is a sense that even in their wildness, or in the case of the more domesticated dogs, their reluctance to stay with Grainier full time, they also represent companionship - more specifically, the companionship of nature.