From the hermeneutics of facticity to phenomenological destruction, Heidegger’s constant effort has been to achieve a non-metaphysical, pre-theoretical methodology of philosophy. His ideas finally lead to the development of the method of formal indication. In this essay, I will consider first the methodological function of historical things, in order to illustrate the method of destruction. Then, I will explain the definition of philosophy from the point of view of formal indication, thereby showing how different this method is from traditional philosophical methods. Finally, I will analyse the importance of this transformation of methodology, in order to reveal in which sense a concrete universality is possible and how it contributes to the foundation of the ontology of life.