This book proposes a new interpretative key for reading and overcoming the binary of idealism and realism. It explores the way human consciousness unfolds through the relationship between the I and the world—a field of phenomenological investigation that cannot and must not remain closed within the limits of its own disciplinary boundaries. The book focuses on the question of realism in contemporary debates, ultimately dismantling prejudices and automatisms that one finds therein. It shows that at the root of the controversy between realism and idealism there often lie equivocations of a semantic nature. By returning to the origins of modern phenomenology this study mines the Husserlian concept of transcendental idealism. Following this path, and neutralizing the extreme positions of an acritical idealism and a naïve realism, the book proposes a “transcendental realism”: the horizon of a dynamic unity that embraces the process of cognition and that grounds the relation, and not the subordination, of subject and object. The close reading of this reciprocity offered here allows one to surpass the limits of the domain of knowing, leading one to fundamental questions about the ultimate sense of things and their origin.