About your passion!

I'm talking about something you wanna do in your life, like work or hobby in which you are sure you are passionate about. I have asked a lot of people and most them don't really what's their passion in life. Some people just treat my question as a joke and I can't get anything serious about their answers. I put this issue in a discussion because I want myself to find out what is really my passion. I want to know if there's a sign that it is your passion or are there people born in this world who has no passion. A lot of people are telling us that if you live your passion you will be happy and fulfilled. And if you can turn your passion into something rewarding to you such if your job or business is related to something you are deeply passionate about, then you not get bored and you will be energetic every time you work on it. So I envy and admire those people who has find out their passion early in their life. How about you? What's your experiences regarding your passion. Have you already find it out or just like your still working on discovering it?