Be it sailing, racing, writing, singing, or underwater basket weaving, if you want it to be a part of your life, create it. Making a collage is an excellent tool to help you visualize your dream life. If you can put all the images together in one place and then put that collage where you can see it every day, you will be planting seeds in your subconscious. Without realizing it, you will see opportunities to let your dream into your life in ways you never imagined possible.
Some people call collages Vision Boards, and that's okay. To me, the difference is that a vision board is more broad covering many aspects of the life you are creating, but if you want to make one for just your dream, I say do it!
There are many benefits to cutting and pasting images and creating a collage, but for now, just focus on your dream to sail. Make more than one, big and small so you can put them in multiple areas where you live and work. The more visual reminders you have of where you want to be, the sooner you will be there!