What does the train symbolize

The answer is Nothing symbolises that first step into a land of adventure like a train journey. Maybe it's the idea of being able to travel across open country, seeing it from the windows, finding yourself in an entirely new place – often trains represent an inward journey as well as a real one.

Explanation:

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it should be a. song dynasty’s civil service examination system created an administrative bureaucracy manned by the landed aristocracy.