Most writers have a preference for one plot line over another. Some are Character-driven writers. Others are Action-driven writers. Some have strengths in both. Not many are Thematic-driven.
The deeper meaning of a story comes up out of the story itself over time. Thus, the Thematic Significance plot line is generally saved for the last or is either ignored or overlooked all together.
The more aware a writer is about their own personal themes, the more attuned the writer will be in the search for deeper meaning.
For an exercise to determine your own personal themes, go to:
http://www.blockbusterplots.com/tips.html
Recent testimonial from Florida:
"It is amazing how each session the plot, theme and content gets clearer and clearer as you direct me. The scenes I had the most resistant to reveal the most... I feel myself getting closer to a story line....and it is my story and it is not. because what I lived is not who I am....for the first time I am coming out of the closet..."