Constructing the Rational Self: Archetypal Narrative as Scaffolding in Third-Wave CBT

Abstract Standard cognitive interventions often encounter a "semantic gap" where clients intellectually grasp irrational beliefs but fail to emotionally integrate adaptive alternatives. This paper proposes a clinical framework merging Rational Emotive Behavior Therapy (REBT) and Acceptance and Commitment Therapy (ACT) with archetypal narrative. We posit that archetypes function not as maladaptive "masks" for avoidance, but as "cognitive scaffolding"—temporary narrative structures bridging the gap between dysfunctional habits and the client’s Zone of Proximal Development. To substantiate this approach, we present three case studies: an entrepreneur utilizing astrological concepts to overcome self-criticism, a socialite using the "Lilith" myth to reconcile cultural repression, and an executive employing Jungian roles to navigate identity loss. These cases demonstrate how archetypal scaffolding accelerates cognitive defusion by externalizing internal conflicts and providing an emotional syntax for disputation. Finally, we outline clinical protocols for "fading the scaffold," ensuring that these narrative devices serve as transitional tools for constructing a resilient, authentic self-narrative rather than permanent crutches.