A duck egg is traditionally read as a beginning connected to emotion and water — a feeling that is about to take form. Its richness links it to nourishment and family.
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.