When I arrived in California in 1998, I had never eaten an avocado, or a persimmon. I had also never been hired for graphic design. Within a short time, having experienced these amazingly satisfying things, I decided to stay.
You know you're doing the right job when you will rush to your studio after breakfast in your pajamas and don't get dressed until dinner. Or you're willing to work during your Hawaiian vacation, where the internet connection sucks and the heat and humidity fry your laptop.
A good logo makes the skin on the back of my neck tingle.