Standing at a precipice is read as reaching a point of no easy return: a decision, a risk or a limit. Tradition sees in it both the fear of the drop and the wide view that only an edge can give.
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.