The Big Bang is the image of everything beginning at once, read as a radical new start or an explosion of creative energy. It speaks of origins and of a world being made.
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.