For Kierkegaard, the core lesson from Kant was that one must not try to relate to reality cognitively—what is needed is action, commitment, a leap into that which one cannot know but which one feels is essential to give meaning to one’s life. In accordance with Kierkegaard’s felt religious needs, what is needed is an irrational leap of faith. It must be a leap because after the Enlightenment it is clear that the existence of God cannot be justified rationally, and it must be irrational because the God that Kierkegaard finds compelling is absurd.

