Abstract
In the following Work we will analyze and interpret three elaborations around the conceptions related to things, intramundane entities and the practical occupation of Dasein in the world, in three works corresponding to three moments of Heidegger’s elaborations: the first, from the time of Sein und Zeit and the other two, to a transition period and after the Kehre. In this framework we intend to demonstrate and circumscribe the implications of the change in perspective in both periods, which move from the centrality given to the practical and functional field of Dasein, to a markedly relational approach that is radicalized in his 1951 writing. This distinction allows us to identify and relate a displacement of the emphasis in the manual model of primary relationship with the world and in the ethical projections such treatments suppose.