In the euphoria of early September 1919, the “transtemporal task” that Heidegger already saw outlined ahead of him — the art of “new seeing in principle” and pushing forward into a new “problem horizon” — consists in nothing other than ridding his country, his culture, indeed his entire tradition of the bad modern-day magic of subjective philosophy and epistemology, of its purely calculating rationality and fixation on the natural sciences. Overall he saw his fellow Westerners as trapped by an understanding of themselves and an approach to the world that were fundamentally false. Their capacity to see reality had been distorted by an unquestioned adherence to false concepts. For that reason they could see themselves, the world, and one another only in a very blurred form, as if through frosted glass.
– Time of the Magicians: Wittgenstein, Benjamin, Cassirer, Heidegger, and the Decade That Reinvented Philosophy (2020)
Sounds somewhat Traditionalist, huh?
This project required that Heidegger either entirely avoid the ubiquitous but fundamentally false concepts used to describe the modern state of the world (subject, object, reality, individuality, value, life, matter, thing) in his own philosophy or replace them with new creations (Dasein, environment, being-in-the-world, each-one-ness [Jemeinigkeit], concern [Sorge], equipment [Zeug]). There can be no right speaking in the false, so Heidegger brought a new kind of speaking into the world.
Ibid.