We present a novel framework for understanding the diverse spectrum of mental breakthrough events, ranging from problem-solving insights to profound personal transformations. We propose that these events, while varied in expression and impact, share common underlying mechanisms of representational change. We also hypothesise that the differences in phenomenological intensity can be conceptualized along a continuum. Central to our model are three core components - tension, altered salience, and enhanced flexibility - which we identify as essential prerequisites for significant cognitive restructuring. These components interact within an iterative cycle, influencing both the emergence and nature of insight experiences. Drawing on examples from different fields, we explore how a conflict between existing models can trigger this cycle, wherein mechanisms of attention allocation and relaxation of constraints work in tandem to facilitate the emergence of insights. Furthermore, we propose that the intensity of the "aha-moment" and the breadth of its impact are contingent on how central the conflict is within one's conceptual landscape and the extent to which existing mental models are challenged. Thus, the model accounts for both the subtle, momentary insights in problem-solving and the transformative realizations that reshape core beliefs and self-perception. By synthesising insights from various domains, including psychotherapy, contemplative science, and psychedelic research, we present a theoretical account with broad scope, aiming to shed light on the complex processes that can lead to a wide array of mental breakthroughs, thereby contributing to the understanding of insight phenomena across disciplines.