Dreaming of meeting a celebrity

I had a dream that I met a celebrity at a book store. There were some strange circumstances about in the store, and I can't totally remember what happened to me there. I assume that the strange, unexplained circumstances that the bookstore was in the midst of, gave the celebrity away and she materialized from the aether! I didn't have my phone or camera with me, but the celebrity was Taylor Swift, albeit when she was younger than she is now. What does this dream mean? I will never know that happened later in the dream, because it stopped. I feel sad all of a sudden.