The life of a person, there are always something must to do.
The pursuit of these things need this persistence.
Focus help us focus on doing the most important thing, give her a deadline may be one year or two, it may be only a few days or a few hours. In short, once decided to own her, then do not abandon her half-way.
The life of a person, should not be too complicated. Focusing on now, dedicated to each effort, you will be proud of you, when you recall the past.