Passion could be viewed as the most extreme form of interest, motivation, and enjoyment. If you aren't passionate about something, you're missing out on the full depth of human experience.
I think that's a good definition, and that's my whole point -- passion is so extreme that, almost by definition, it means your whole life balance is out of whack, and other things are suffering as a result.
And sure, I might be missing out on the full depth of human experience, but I also don't know what it's like to be insane, or be manic, or addicted to cocaine, nor do I think it's worth the price to pay.
I'd rather forego all those "extreme" things, whether they be manias or "passion" about a cause, and just stick to normal, balanced human happiness. And this cultural norm which is very prevalent in the US, which says you're supposed to be passionate about things, frankly just annoys me. I don't think it's healthy, and I don't think it's something we should be encouraging in people.
I guess "follow a nice balance of things in your life, and be happy" just doesn't have the same ring to it as "follow your passion".
