Several frameworks regarding the human mind suggest it is polypsychic, proposing that individuals can experience numerous states, activated to support automatic responses to environmental cues. Frameworks on the various innate human defences are often discussed in the same circles, and therefore there is scope for a model that brings these perspectives together. Therefore, this article integrates these frameworks and proposes a new transtheoretical model of defensive responses hypothesised to activate from within parts of the human psyche. The model suggests that defensive states are innate; however, following trauma, their activation may be conceptualised along a proposed continuum of increasing complexity from adaptive mood states, to lower mode states, trauma-based ego states, and dissociated ego states. This article proposes a conceptual taxonomy of defensive states: Attachment phobic and attachment cry states, freeze, flight, fight, placate, tonic immobility, shutdown, and faint states. Resourced states are also suggested as regulated baseline states activated during experiences of safety. The proposed model is presented as a heuristic framework for future empirical investigation and potential clinical formulation. It also provides a platform to generate hypotheses regarding the suggested innate defences being activated from within proposed parts of the psyche, including through the development of a new self-report questionnaire. Subsequently, it may support clinical formulation across various modalities, particularly within trauma-focussed therapies such as Eye Movement Desensitisation Reprocessing (EMDR) Therapy, Deep Brain Reorienting (DBR), and hypnotic imagery.