@Evilgranny606432 The omniscient narrator references the privileged younger daughter of a prosperous family, who escaped from the stifling life of convention, but fell into a life of crime. She now wishes not to relive that life, but to have lived otherwise. "The train" is both literal and metaphorical: literally, it is the means of escape to adventure; metaphorically, it represents the inevitability of choices and their consequences.
@Evilgranny606432 The omniscient narrator references the privileged younger daughter of a prosperous family, who escaped from the stifling life of convention, but fell into a life of crime. She now wishes not to relive that life, but to have lived otherwise. "The train" is both literal and metaphorical: literally, it is the means of escape to adventure; metaphorically, it represents the inevitability of choices and their consequences.