Heidegger's Question about Meaning of Being and Genesis of Concept of Dasein

The following paper follows first of all Heidegger’s question concerning meaning of Being in his early works. Then it deals with his answer to that question, which is remainded unchanged in spite of the great transformations of his Being-problematic: According to Heidegger, the meaning of Being in the western history of thinking i.e. in the metaphysics has been understood always as “presence" (Anwesenheit). Heidegger not only doesn’t oppose this historical answer, but also has reflected it in his philosophical thinking. The most important consequence of this move is the emergence of the term Dasein, in that lies the meaning of Being or presence too. Heidegger owed this great ontological position to his lengthy philosophical dialogue with Aristotel. Finally this article shows how Heidegger develops step by step the presence from an Aristotelian-metaphysical position of being in general or being as such, into something concerning his special term Dasein, which includes exclusively the human being. Now human Dasein is presented by or for himself and in the world as Being-in-the-World.