This paper explores the conceptual foundations of the psychology of fear through a critical analysis of dominant definitions and theoretical models. Starting from three philosophical-psychological essays that establish a distinction between danger (physical domain) and fear (mental domain), the paper develops the argument that the identification of these categories is a category mistake leading to theoretical inflation and pseudo-complex explanations. Through an analysis of the author's dialogue with artificial intelligence, the paper demonstrates how conceptual purity can be tested, defended, and refined. A new definition of fear is proposed as an emotional-physiological response of the organism to a mental representation of threat, thereby separating fear from biological defense mechanisms and placing it within the domain of cognition and imagination. The paper concludes that precision of definitions is a prerequisite for scientific validity and that the method of dialogical concept testing represents an innovation in philosophical-psychological methodology.