The publication presents Maritain's concept of intellectual intuition in a wide philosophical and historical context and examines its role in the construction of metaphysics. The question to be answered is largely that of whether - and in what measure - intellectual intuition, in Maritain's view, plays a role in the discovery of an understanding of the object of metaphysics, namely the concept of being, as well as the transcendent properties of being, and in the admission of the first principles of being. In the book one can find also analyses of various kinds of intuition as well as the role played by intuition in different phases of human cognition. The book addresses metaphysics in the aspect of its development and methodology, its value is thus not only historical but also philosophical.