A gala is read as elegance, status and being among people who matter in some world. Dream books see it as a wish to shine, or as unease about whether you truly belong in that room.
Has this come up in your dreams before? What was going on in your life then?
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.