Full Idea
Some moods, such as 'anxiety' (Heidegger), 'nausea' (Sartre), 'guilt' (Kierkegaard), and 'absurdity' (Camus) are important because they have the capacity to shake us out of complacency and self-deception, disclosing our freedom and finitude.
Gist of Idea
Anxiety, nausea, guilt and absurdity shake us up, revealing our freedom and limits
Source
Kevin Aho (Existentialism: an introduction [2014], Pref 'What?)
Book Reference
Aho,Kevin: 'Existentialism: an introduction' [Polity 2014], p.-7
A Reaction
[bit compressed] Problem: if I fail to feel such things, and deliberately induce them in myself, am I being inauthentic? Making a huge and unnatural effort to be an existentialist seems all wrong. And who wants the permanent grip of such feelings?