The dreamed coast is a symbol of stability and durability. To float on water and to want passionately on the coast means that in reality you were tired of uncertainty and innuendo. If dreamed you that you try to come to the coast, however a wave carries you back, then in real life you cannot comprehend in any way something most important that would help you to assess a situation adequately. Try to talk to someone to whom you trust. If in a dream you on the contrary do not see the coast, and around you boundless water open spaces, then you should not take active actions and to take a waiting attitude.
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.