Railway line
A track of iron rails laid across the country — a fixed route that decides in advance where anything running on it can go.
A railway line in a dream is the dream's image of a fixed route that decides in advance where anything running on it can go. The line is not a path; the line is steel set into the ground, and the train cannot leave it. The dream brings the railway line when something in your life — a career path, a predetermined sequence of decisions, an institution you are inside that runs only on certain tracks — is moving you along a route that was laid by other people before you boarded. A railway line followed to a good destination is the dream affirming that the chosen route is taking you where you were trying to go. A railway line followed past the station you meant to stop at, with the train continuing on the tracks without your having decided to stay aboard, is the dream noting that the route has carried you further than you intended, and the fixity of the line means there is no easy step off.