The raft in dreams usually means that you are going through life in very risky way. Perhaps you are not sure about your future, you do not know where you will be brought with the flow and who will save you. You should rely only on yourself, because you cannot let yourself go with the flow, the effort is needed to make your life better which will make you happy. If you see yourself being already on that raft, the changes must be done immediately, because you are feeling very scared, dont know where you are going and how you will reach your destination in life.
Read more about dreaming of Raft in other dream meanings interpretations.