The bar or bat mitzvah marks the day one becomes responsible for one’s own choices. Dreaming of it is read as stepping into maturity and being recognised by your community.
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.