Answer:
A lot!
Explanation:
It means so much, because you do not want to have a reader who is flipping through the pages of a story without knowledge of what is happening! Would you like to read a book that had random events happening all of the time with no explanation?
It's better to do it before so then when you start your finishing paper, you'll have everything done and only have to copy it.
Metaphor
This is active voice
