A boarding pass stands for permission to begin a journey that is already arranged. Losing it is read as fear of missing a chance; holding it, as readiness to step into something new.
Where in your waking life have you met something like this lately?
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.