Highways carry you toward, or away from, someone or something. Other parts of the dream are important to meaning here, such as billboards, buildings, and people or vehicles that are traveling on the same highway.
Being lost on the highway: Needing to make a decision, but not having a clear picture of what all the options offer. Alternatively, feeling as if you have lost your faith or spiritual focus.
Stranded on a highway: A type of desertion dream. Also, a need within to reach out and ask for aid, otherwise the vehicle of your life may remain stalled.
Hitchhiking down: Wanderlust; the desire to release all responsibilities and experience some adventure. Alternatively, riding on someone else’s talents, abilities, or finances, instead of being independent.
Fork in the road: A determination that must be made fairly quickly or the opportunity may be lost. Two vehicles taking separate parts of this fork represent individuals or situations moving away from one another.... The Language of Dreams
To dream of an island symbolizes an easy, comfortable, and well-lived life.
To dream that you are stranded on an island signifies that you are wallowing in despair and are at a lost as to what to do with your life. Alternatively, you may be seeking a form of refuge. Perhaps you are refusing to confront certain situations and have opted to run away from the inevitable.... Dream Symbols and Analysis
It traditionally represents our great unconscious, memories, emotions, and individual soul and collective experiences. Look at all of the details in this dream. Is the water clear or murky? Is it calm or turbulent? Are you catching fish, or are you stranded and afraid? Look, listen, and try to comprehend the messages in this dream. No one is in a better position to give meaning to your dreams than you can. Concentrate and learn for yourself. See also: Water... The Bedside Dream Dictionary