The Reason Archetypal Character makes decisions and takes action wholly on the basis of logic. (Remember, we say wholly because we are describing an Archetypal Character.)
While the Reason archetype is the organized, step-by-step type the Emotion archetype is frenetic, disorganized, and driven by feelings.
It is important to note that, as in real life, Reason is not inherently better than Emotion, nor does Emotion have the edge on Reason. They just have different areas of strength and weakness that may make one more appropriate than the other in a given context.
Functionally, the Emotion Character has its heart on its sleeve; it is quick to anger, but also quick to empathize. Because it is frenetic and disorganized, however, most of its energy is uncontrolled and gets wasted by lashing out in so many directions that it ends up running in circles and getting nowhere.
In contrast, the Reason Character seems to lack “humanity” and has apparently no ability to think from the heart. As a result, the Reason Character often fails to find support for its well-laid plans and ends up wasting its effort because it has unknowingly violated the personal concerns of others.
In terms of narrative psychology,Reason and Emotion describe the conflict between our purely practical conclusions and considerations of our feelings. Throughout a story, the Reason and Emotion Archetypal Characters will conflict over the proper course of action and decision, illustrating the Story Mind’s deliberation between intellect and passion.