I like this philosohy a lot! To me I interpret it as "do what you have to do in order to achieve your final outcome".
Be it exercising, writing, establishing a habit; is all in the same flavor.
We have to be disciplined enough to get rid of the noise in our life and do what we have to do in order to get what we ultimately want in life.
I agree @bravojim. If you're unwilling to compromise on certain outcomes, you will do whatever it takes. Just keep your mind open for better routes to get there, even if you are already halfway a certain path :-)