An empty void is read as the unknown, a blank where meaning has not yet appeared. It can feel like loss or emptiness, and tradition also sees it as open space where something new may form.
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.