Three spirals turning from one centre are an old Celtic image of motion and the cycles of life. The triskelion is read as forward movement — growth that keeps going through every phase.
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.