Focusing on the Heidegger s texts prior to the Turn of his thought, which occurred in the middle in the 1930s, especially in Being and Time, this dissertation investigates in what sense the multiple aspects that determine the human transcendence and the ontological constitution of the world can, in an intimate intentional correlation, enlighten and outline the horizon of disclosure of Being in general. To fulfill this goal, four steps will be covered, establishing along the path a dialogue between Heidegger and other thinkers, such as Nietzsche, Husserl, Kafka, Simmel, Fernando Pessoa, among others. In the first of those steps, will be traced a double characterization of the ontological structure of human existence, which Heidegger denominated Dasein, under the aspects of Being-toward-death and Being-in-the-world. This characterization clears the path to the problem of authentic existence, legitimately transcendent, in its relation to the world formation. The analysis of the fundamental structure of the transcendence, in the light of the heideggerian understanding of the phenomenon of truth, fundamental event of the Being, will constitute the second step. In the third chapter, the phenomenon of time, which necessarily appears in the discussion of the instantiation of the truth, will need to be thematized in the light of the general terms of the precedents considerations. As the world is not a static structure, for it has a temporal genesis, there is a urgency to explicit the concept of time of the world in its relation to Dasein. Finally, revealing the horizon of the phenomenon of truth, the time of the world will find its foundation in a temporality (Zeitlichkeit), which constitutes the link of appropriation between the human existence and the Being in general.