Introduction
In our last lesson, we engineered the external conflict of a story by setting a protagonist's desire in direct opposition to an antagonist's goal. This creates the primary engine of plot: a "push-and-pull" of action and reaction. However, a plot without an internal dimension is merely a sequence of events. For a story to have weight, the external conflict must force the protagonist to confront an internal one.
Today, we move from the external to the internal. Your learning outcome is to define a character's internal need as the flaw or misbelief preventing their fulfillment. We will dissect the character's "internal source code" to understand the fundamental bug—the misbelief—that produces flawed behavior and prevents them from achieving true satisfaction. This internal architecture is what makes a character's journey meaningful.
1. The Core Distinction: Want vs. Need
In previous lessons, we focused on the protagonist's Want. This is their conscious, external, plot-driving goal (e.g., win the race, find the treasure, get the promotion). It is concrete and measurable.
Beneath the Want lies the Need. The Need is the character's true, internal, and often unconscious requirement for psychological or emotional fulfillment.
Wants, Needs, Fears and Misbeliefs
The article 'Wants, Needs, Fears and Misbeliefs' by Robin Catling provides a clear, functional distinction between these two critical character components.
Read the first part of the article, down to the heading 'From literature'. Focus on how the author defines 'want' as the external plot thread and 'need' as the internal 'why-we-should-care' thread.
To summarize the key distinction:
- Want: The external goal the character thinks will make them happy. It's the "what." This drives the plot.
- Need: The internal truth the character must embrace to actually find fulfillment. It's the "why." This drives the character arc.
A character might believe their Want will satisfy their Need, but this is rarely the case. For example, a character might want to win a boxing championship, but they need to prove they are not worthless. The plot's function is to create situations where the pursuit of the Want forces the character to confront their true Need.
2. The Internal Obstacle: Misbelief and Flaw
If the Need is the character's ultimate objective for fulfillment, what prevents them from achieving it? The answer lies in two interconnected components: the Misbelief and the Flaw.
To establish precise definitions for these terms, we'll turn to a video that breaks them down mechanically.
Character Arcs, Flaws, & Lies Don't Need to Be Confusing (Writing Advice)
The video 'Character Arcs, Flaws, & Lies Don't Need to Be Confusing' by writer Brandon McNulty offers clear, practical definitions that separate these concepts.
Please watch the following three short segments: From 01:56 to 02:50 for a definition of 'Flaw'. From 02:50 to 04:02 for a definition of 'Lie' (which we will call Misbelief). From 11:31 to 12:06 for a final summary distinguishing the two. Focus on the core distinction: a flaw is a behavior, while a lie/misbelief is a belief.
Let's formalize those definitions:
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Misbelief (or "The Lie"): A faulty worldview. It's a specific, incorrect assumption the character holds about themselves or the world. This is the root cause of their internal problem—the "bug" in their programming.
- Example: "Success is more important than friendship."
- Example: "I am not worthy of love."
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Flaw: A negative, observable behavior, trait, or habit that arises from the Misbelief. It is the symptom of the bug.
- Example (from the misbelief "Success is more important than friendship"): Greed, ruthlessness, neglecting loved ones.
- Example (from the misbelief "I am not worthy of love"): Self-sabotage in relationships, inability to accept compliments, isolation.
The Misbelief is the faulty logic; the Flaw is the dysfunctional output. A story's plot is designed to pressure the character until this faulty logic breaks down.
3. The Causal Chain: How Misbelief Prevents Fulfillment
These components are not random; they exist in a clear causal hierarchy. A formative past event creates the Misbelief, which in turn generates Flaws, and these Flaws manifest as specific behaviors that prevent the character from fulfilling their internal Need.
This diagram provides an excellent architectural model of this hierarchy.

This model shows how a character's entire dysfunctional pattern can be traced back to a single point of origin.
- Origin/Defining Moment: An event (often in the backstory) where the misbelief was formed as a survival mechanism.
- Misbelief: The false conclusion drawn from that event.
- Flaw/Behavior: The consistent actions the character takes based on this false conclusion.
This chain directly obstructs the character's Need. If a character's Need is to form a trusting relationship, but their Misbelief is "everyone will ultimately betray you," they will develop Flaws like suspicion and dishonesty, making it impossible to form that relationship.
Let's see this system in action with some well-known characters.
"What's the difference between the FEAR and MISBELIEF?" | #AskAbbie
Abbie Emmons' video on fear and misbelief provides several clear case studies. We will analyze two of them to see how a specific misbelief drives a character's actions and prevents them from getting what they need.
Watch the analyses of Elsa from 'Frozen' (02:30 - 04:13) and Mulan from the animated film (04:36 - 06:11). For each character, pay close attention to the explicitly stated Misbelief and how it dictates their actions.
As you saw:
- Elsa's Need is to connect with her sister and be accepted. Her Misbelief is that she must be isolated to be safe and free. This misbelief directly causes her to flee, pushing away the very connection she needs.
- Mulan's Need is to bring honor to her family by being true to herself. Her Misbelief is that she must hide who she really is to bring honor. This misbelief causes her to impersonate a man, directly contradicting her need to be accepted for her true self.
Test your understanding!
A software developer has the following attributes:
- Want: To ship a flawless piece of code and get recognition from his boss.
- Need: To trust his teammates and feel like part of a collaborative community.
Your task is to define a Misbelief that would logically obstruct his Need, and then list one Flaw (a behavior) that would result from that Misbelief.
Show answer
- Misbelief: "If you want something done right, you have to do it yourself. Relying on others is a sign of weakness and always leads to failure."
- Resulting Flaw: Micromanagement. He constantly checks his teammates' work, refuses to delegate critical tasks, and rewrites their code without discussion, alienating them and preventing the collaborative community he secretly needs.
4. The Unified Internal Model in Practice
Now, let's assemble all the components—Want, Need, and Misbelief/Flaw—to see how they function as a complete system. The article "How Your Character's Misbelief Drives Plot" explains that this internal problem pre-dates the story and is what the plot is constructed to solve.
How Your Character's Misbelief Drives Plot
This article by Lisa Cron explains how the misbelief is the engine of the internal story. It provides a clear, step-by-step process for identifying and using it.
Read from the beginning down to (but not including) Step 3. Focus on how the author connects the internal misbelief to the external plot, arguing that the plot must be designed to challenge this misbelief.
The article reinforces a key principle: the plot is not random. It is a purpose-built crucible designed to force the protagonist to confront their Misbelief.
Let's use the example of Elizabeth Bennet from Pride and Prejudice, analyzed in the "Wants, Needs, Fears and Misbeliefs" article, to see a complete model:
- Want: To secure her family's financial future.
- Need: To find a life partner who is her intellectual and moral equal.
- Misbelief: That wealth and high social status are reliable indicators of arrogance and a poor character.
- Flaw: Prejudice. She is quick to judge people based on first impressions and status (like Mr. Darcy), blinding her to their true nature.
Her Misbelief directly obstructs her Need. The one person who could potentially satisfy her need (Darcy) is immediately disqualified in her mind because he perfectly fits the criteria of her Misbelief (wealthy, high status). The entire plot is a series of events designed to challenge this Misbelief until it shatters, allowing her to finally fulfill her Need.
Conclusion
You have now assembled the key components of a character's internal architecture. This system provides the "why" that powers the "what" of your plot.
Key Takeaways:
- A character's external Want drives the plot, but their internal Need drives their character arc.
- The Misbelief is the central, flawed piece of logic that prevents a character from achieving fulfillment. It is the root cause of their internal problem.
- The Flaw is the observable, negative behavior that results from the Misbelief. It is the primary symptom.
- This internal system (Need vs. Misbelief/Flaw) is not separate from the plot; the plot should be engineered specifically to pressure and dismantle this system.
Preview of the Next Lesson:
We have defined the Misbelief and understood its function within the character's internal system. In our next lesson, we will focus on the practical craft of writing it. We will move from identifying the concept to a more granular task: articulating a character's core misbelief as a specific, powerful, and testable false assumption about the world or themselves. This will turn a general idea into a precise tool for generating character decisions and actions.