My passion is all I have....without it all I'm doing is being a zombie

All movie fanatics have watched what I would refer to as a great work of art starring Leonardo Di Caprio called "The Aviator". The film gives a look into the ups and downs of inventor, movie director, billionare etc Howard Hughes. At 22 years old and having inherited his parents fortune, he started directing a movie known as Hells angels. Most movie buffs know that it usually takes an average of one year for a movie from filming to release, Howard took over 3 years and almost 4 million dollars( which according to dollartimes.com translates to almost 52 million dollars in 2014). This doesn't sound like much when you factor in that most blockbusters today are made with a budget of at least 100 million dollars but bear in mind he financed this from his own money and was part of every decision that was made. That kind of budget was actually unheard of in those days.
One of the most interesting decisions that he made during filming was waiting almost 8 months for the right set of  clouds that would be necessary as a background to ensure the planes look like they are moving much faster than they actually are. The search for perfection is what I would call it, most people would call it insanity but those individuals have probably never felt that need or urge deep within their gut to accomplish something and nothing would get in the way.
You know that point in time where you only have tunnel vision and nothing else matters but your goal. How do you harness this kind of feeling for all your tasks? I'm no psychologist but I don't think you can replicate that feeling to everything you do. With this in mind I'd like to differentiate between someone who has a job and another how has a career. If you have a job then every waking minute to you feels like an eternity and if you have a career then there aren't enough hours in a day. As a job owner you may not be able to be passionate with your work but as a career person I am sure you have had those days when day turns into night before you know what happens. Aspire to have a career or you will just be another zombie.....