Plato set the twelve-faced dodecahedron aside for the cosmos itself. In a dream it is read as a glimpse of the whole picture — the sense that everything has its place in a larger design.
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.