The boat in dreams is the symbol of movement the dreamer makes while living his life. If you are the one who controls the boat and doing it with easiness, then such dream shows that you have an ability to manage your life perfectly. If someone you know is the captain of the boat, it shows the huge influence this person has in your life. The dream could suggest to be more independent from that particular person. Sometimes the boat shows some situation and your ability to solve the problems. If there is a storm in the water and you are shipping the boat, you are finding hard to concentrate and manage your own life, but if it goes smoothly, you are doing great.
Read more about dreaming of Boat in other dream meanings interpretations.