What is the significance of the train in Paul's Case and A Journey?

In Willa Cather's "Paul's Case," the train symbolizes escape and the longing for a more vibrant life, reflecting Paul's desire to break free from his mundane existence in Pittsburgh. Similarly, in "A Journey," the train represents transition and the passage of time, illustrating the characters' movement towards self-discovery and change. Both stories utilize the train as a powerful metaphor for the characters' aspirations and the complexities of their journeys. Ultimately, the train serves as a conduit for transformation, emphasizing themes of longing, identity, and the quest for meaning.