A verification code is read as the need to prove you are who you say you are. Dream books link it to being doubted, and to the small checks that guard trust.
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.