Abstract
Martin Heidegger’s influence over the contemporary philosophical landscape is indisputable. However, it is not always clear what the point is in his understanding of philosophy as ontology, namely, as a question about the being. In order to clarify this, and mostly by using a vocabulary different from Heidegger’s, in this paper I offer my interpretation of his philosophy as a non-positive form of ontological investigation. That is to say, as a question about the being that rejects any attempt of an answer. In order to achieve this goal, I consider two structural aspects of Heidegger’s thinking: its object, and its condition.