Anguish is "extreme unhappiness caused by physical or mental suffering". The feeling of anguish is typically preceded by a tragedy or event that has a profound meaning to the being in question. Anguis
Anguish by August Friedrich Schenck, 1878, National Gallery of Victoria
Existentialism is a family of philosophical views and inquiry that explore the human individual's struggle to lead an authentic life despite the apparent absurdity or incomprehensibility of existence.
Anguish
…mentally (often referred to as emotional distress). Anguish is also a term used in philosophy, often as a synonym for angst. It is a paramount feature of existentialist philosophy, in which anguish is often understood as the experience of an utterly free being in a world with zero absolutes (existential despair). In…
Sisyphus, the symbol of the absurdity of existence, painting by Franz Stuck (1920)
French philosophers Jean-Paul Sartre and Simone de Beauvoir
French philosopher, novelist, and playwright Albert Camus
Adolphe Menjou (left) and Kirk Douglas (right) in Paths of Glory (1957)