In this snippet, the three parts that will show your themes are.
- Situation - this should show what’s normal.
- Development - this shows what’s not normal.
- Reaction - this shows how you deal with what’s not normal.
The themes will emerge naturally from the way you contrast:
- Situation vs Development – This could be becoming suddenly rich, suddenly poor, having a new school, new family, or losing someone or something special. Whatever happens, this change forms the building blocks of your story.
- Development vs Reaction – How all the characters react to this development over the course of the story will show the main themes. Acceptance, adjustment, compassion, discrimination, greed, and leadership are some examples. In many stories, the protagonist will react poorly at first but then, over the course of the story, change for the better.
This pattern loops: your reaction will create a new situation, which then develops until it triggers a new reaction, and so on.
A good story (whether it’s a memoir or fiction) will use those loops to develop and resolve the themes introduced at the start.