Moving beneath the surface, the submarine stands for exploring feelings and thoughts that stay hidden from view. Tradition also reads it as a sealed, self-contained mood: protected, but cut off from light and air.
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.