Pirates are read as freedom without law and the hunger to take rather than wait. Dream books also see adventure in the figure — the wish to sail beyond the edge of the map.
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.