I know what you’re thinking.
Um, the premise of my book is about a boy on Mars, the setting is Mars, I don’t care what the theme is, he’s on Mars dang it!
Sssshhhh, yes, yes, I know. Your story premise and events probably require a certain setting. You should be able to organically tell what you need just by having a rough idea about your story. It has to happen in a small town, or a school, or a haunted house, etc.
But when dealing with theme, I want you to think beyond just the basic idea of setting. I want you to see the setting not just as the place, but the time of year, the weather, and all the objects that surround your MC.
Now that we’re thinking of setting in a more broad light, go read this post by Rosalyn Collings Eves on objective correlatives. Rosalyn talks about using the setting and objects in the setting to convey your main characters emotional state. You should also have some sort of plot wide objective correlative. Something that comes up several times throughout the story and helps reflect your MC’s character arc. This object should be important to the theme somehow. You should be able to state how it plays into it.
In Zootopia, there are several things, but the one that plays most into the theme is Officer Hopps’ fox spray, don’t you think? The way her relationship changes as to whether or not she needs that represents her journey through the theme that “Change begins with you.”
In Hamilton, I have a harder time fully pinning it down, but I’d say it’s probably Hamilton’s relationship to “bullets” and “shots” and “duels.” There are three significant duels in the story, and I think each of them represents an important turning point for Hamilton. Plus the idea of how he relates to “throwing away his shot” and finally in the end when he asks the question, “will this bullet be my legacy?” It all plays into the theme of “Who lives, who dies, who tells your story?’ because Hamilton was a genius and did amazing things for America, and yet we mostly just remember him as the guy who was shot by Aaron Burr in a duel and died.
In a book by a CP of mine, the theme is about carrying the weight of another’s burdens on your shoulders. And the plot wide objective correlative is this constant pressing heat and drought. And as the story gets worse the heat gets worse, until finally everything comes to a head and the MC realizes she can’t do this all on her own and asks for help and finally, finally the heat breaks and the rain comes. Do you see how the OC mirrors the theme?
It is harder for me to tell you how to plan this. I think you just have to think about it. think about where you can insert “touch points” into your story. Think about an object that can represent the theme and then make it important to your MC. Think about a part of your setting, how can it change throughout the story to reflect your MC’s emotional state?
I can’t tell you how to figure it out, just that you need it. this is the kind of thing that really helps you add layers to your story.