Railway tracks are read as a fixed path laid out in advance, offering certainty at the cost of choice. Tradition links them to routine and long-term direction, and to asking whose plan you are following.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.