Delphine - What a wonderful dream, and how great that you remember so much of it! The books in this dream, I feel, are remresentative of wisdom. The cruise is literally your "cruise", or journey, through life. The books that you buy, and then realize that you already have, represent wisdom that you already carry, and need to look no further for. The message from "someone who works on the ship" - this is from one or more of your guides. :)