Abstract
The paper begins by emphasizing the importance of so-called complete philosophical works on ontology to include ideas on mood and emotions, noting the lack of this inclusion in many texts. Next, it uses and dives into Heidegger’s Being & Time, as an example of an ontological work that aptly includes explanations of mood & emotions, or “attunement” in Heideggerian terms. It is also noted the critical difference between Heidegger’s approach to these topics and the approach taken by psychologists and those in similar fields. Finally, the paper concludes by arguing for the importance of Being & Time, Heidegger, and ontological work on mood.