This dreams interpretation thread has really caught my attention. I bought a book today on dreams... lucky find. Its by igloo - books.

Its interpretation on the ocean is... The ocean represents your emotions. Your actions in the dream reveal how you are dealing with them. Calm water means you're sailing along nicely, rough water means there is something in your life stirring up your emotions. If you're above the water you're in control. Diving in means you're tackling head on.

Hope this helps ☺