Can you help interprate my dream?

I had a dream a couple of years ago that I was on a huge ship. It felt like it was a mile long. The sky was gloomy, cold and grey. The ship was leaving from port and half of it was covered in a metal hood that was part of the port. I was under the metal hood. When the ship was moving toward my destination someone, a stranger, was telling me to stay off the side because I might slip to my demise. When I turned around she was gone. She didn't disappear; she just blended into the massive crowd. That was pretty much where it left off. I have a feeling this took place in Alaska and my destination was Russia. I had other dreams and the common motif seems to hover toward big ship or boats. I'm on the ship most of the time,but on some occasions I'm off it. Another thing about my boat dreams is the aura is gloomy and opaque, plus my feelings always stayed neutral throughout the dream. What does any of it mean?