Walking down an aisle is traditionally read as moving toward a commitment with everyone watching. The way the walk feels — calm, rushed, endless — is taken as how you feel about a step ahead.
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.