If Kant, on the other hand, in the questions he posed and in his regressive method, also naturally makes use of the pregiven world but at the same time constructs a transcendental subjectivity through whose concealed transcendental functions, with unswerving necessity, the world of experience is formed, he runs into the difficulty that a particular quality of the human soul (which itself belongs to the world and is thus presupposed with it) is supposed to accomplish and to have already accomplished a formative process which shapes this whole world.