Just today I came across this article in Fast Company by Cal Newport, excerpted from his book: http://www.fastcompany.com/3001441/do-steve-jobs-did-dont-follow-your-passion. The comments are especially interesting.

Part of the argument is that people think Steve Jobs told students to find and follow their passion, while his own history was more complex than that. He developed passion in his company over time. Read it, because I don’t want to re-create the entire article here. Again, take note of the comments.

Speaking of gaining or learning passion, when the babies were born, although I felt very attached to them and protective and deeply wanted them to be happy, I realized that I grew to truly love them as time went on and we spent more time together. I’m not saying I didn’t love them from day one, but it feels differently than other kinds of love, and it grows over time (like all love). Your children are the only people who you really actually love at first sight, but it is way different than the love you’re used to feeling, as a grown up. You kind of don’t understand it at first, and you’re way too tired to think about it. And maybe that tiny spark is something like when you finally find something to be passionate about, you could miss it, if you’re not paying close enough attention. But if you pay attention, you can do what needs be done to nurture it and make it grow.