In this seminal text, Kierkegaard explores anxiety (or angst ) not as a medical disorder, but as an essential, ontological part of human freedom. Below is an overview of the book's core arguments and historical significance. The "Dizziness of Freedom"

: For Kierkegaard, "more anxiety = more spirit". Animals do not experience this existential dread because they lack the self-conscious freedom that makes humans "spirit". A Comparative Theology of Schleiermacher and Kierkegaard

: Anxiety is the awareness of what could happen; it is the "possibility of possibility".

The work you are referring to is , published in 1844 by the Danish philosopher Søren Kierkegaard under the pseudonym Vigilius Haufniensis .