A fortress is built to keep everything out. Tradition reads it as strong defences around your heart or beliefs — security that can protect you, and can also keep you isolated.
Does the traditional reading fit your dream, or did it mean something else to you?
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.