A many-sided figure is read as complexity, a matter with more facets than first appeared. The more sides it has, the closer it comes to a circle, so tradition also sees in it a slow approach to wholeness.
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.