It May Not Be Your Passion If:

#4 - In pursuit of your passion you end up doing things that might be hazardous to your health.

Let's say your dream is to become Mr. Universe. An extreme example of a dream, perhaps, but let's go with it. You're 6'1", you've been working out with weights since high school, you've even placed in some regional bodybuilding competitions. But in order to get to that lofty plateau, you find you're going to have to do steroids.* If you find no problems with it for yourself, then fine, great, go for it. But what if you have this nagging opposition to using? What if you push past that opposition, that voice in your head yelling "wait, don't!," and start anyway? What if doing that cycle gives you all sorts of physical and behavioral changes - insane acne, heightened aggressiveness, massive depression? Suddenly, you're ignoring clear signs that your body's not cut out for what you're putting it through. Sure, there are all those other people who have "done it," and they're fine, right? But they're not you! It definitely pays to weigh the costs of your dream against any personal harm racing after it may cause.

#1: You're in love with the idea of your passion, but you can't stand the component parts.

#2 - You and your passion have a long distance relationship (and you aren't willing to move.)

#3 - Pursuing your passion clashes big time with your personality.

*Disclaimer: I don't purport to be an expert on steroid use or the controversies surrounding them, and this post does not aim to provide advice on them pro or con. This was the first example that came to my mind - so please don't beat me up!