A closed road or a forced detour stands for a plan that cannot go the usual way. Folk tradition reads it less as failure than as an invitation to find another route.
When this appeared in your dream, what were you feeling?
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.