Indeed, loving the line of work that you're in is different from loving the company that you're in. It's a very important distinction to make.

Your company doesn't love you back. Someday they may find themselves needing to balance some numbers in a spreadsheet and out you go, regardless of how many years you've spent there and how much you love doing what they're asking you to do. In the meantime, they're using you how they see fit, not necessarily in the way that's best for you. You need to watch out for yourself.

I'm not saying you shouldn't try to get a job that you love, just make very sure that you're not misdirecting the love of your job to loving your company. It'll hurt when you find out it's not mutual and you may not be properly prepared for the subsequent job search.