Abstrakt
This book analyzes the horizon of the phenomenality of being in Martin Heidegger's writings before the Kehre, in particular in Time and Being and Kant and the Problem of Metaphysics. However, the central goal is not to explain the concept of horizon; rather, the horizon as a borderline of being-phenomenon and horizontal thinking will be made a subject of discussion.
This will be realized by an intercultural dialogue referring to the conception of the "transcen-dental mediality" in the phenomenology of Yoshihiro Nitta, the most important phenomenol-ogist in Japan today. The author shows that the counterpart of a horizon as a borderline for being-phenomenon and horizontal thinking is the vertical dimensionality of the transcendental mediality on which the phenomenality of life is based.