The speaker sounds disappointed, as he was so close to finally grasping but they keep leaving him. It also says he chases them madly but is unable to catch them. Showing disappoint in himself.
The central idea is the central, unifying element of the story, which ties together all of the other elements of fiction used by the author to tell the story.
I say opinion because even though its rude its not illegal <span />
As the writer forms an idea of what he wants to write, he should begin to narrow his vision and focus on a specific topic and tackle what that topic entails.
