The horseshoe is a long-standing folk emblem hung over doors for protection and welcome. Dream books read it as the wish for safety, steady footing and a hopeful outlook.
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.