When we put our pen to paper, or more often, fingers to keys, we do so with a mission. We establish a goal and pursue it. If we sit down without one, and scatter random thoughts on the paper, the lack of unity will doom our project.
If we have never considered our mission as a writer, we may need to spend some time in consideration. We cannot be aimless in our mission, if we wish to change hearts and minds. No army or sports team goes into battle without a plan.
My mission as a writer is to employ my abilities and fire them with creativity and passion, to create something of power. I write with the end-result in mind. I try to penetrate the hearts of my readers and foresee their perception of my piece.
If my writing is successful, it is because I have circumnavigated the natural defenses of the reader and made them think and engage their feelings about their soul. If they find themselves changed by my thoughts in any way, my mission has succeeded.