A balaclava is read as hidden identity — protection from the cold, or a face kept from view. Dream books see it as a fear of the unknown in someone, or a wish to stay anonymous.
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.