This volume comprises the lecture course that Heidegger gave in 1941 on the metaphysics of German Idealism. The first part of the lecture course contains a preliminary consideration of the distinction between ground and existence. The elucidation of the conceptual history includes a striking confrontation with Kierkegaard’s and Jaspers’ concepts of existence, as well as an elucidation of the concept of existence in Being and Time , which Heidegger distinguishes from the former concepts....