I know you said whorl, but what kind of pattern can you most acurately describe it being as? Based on how developed and distinguished its marks are, or lack there of, it can mean a number and a varying degree of the same thing: how creative, positive, and intuitive you are. I also would not take palmistry to the heart, as some people's palms can contradict who they truly are. I look at it as a great reminder and a starting point to celebrate who you are and possibly what to work on, on yourself, after you've gained some insights.
Since you said you have a prominent whorl, that can mean you are highly intuitive, emotional, creative and share your talent with others and you don't keep it to yourself, you are fond of the ocean and generally have a positive outlook on life. But if the design looks really ornate or crazy, your imagination might be running over what is reality and clouds your perception.