The first element is the experience of the power of being which is present even in the face of the most radical manifestation of non being. If one says that in this experience vitality resists despair, one must add that vitality in man is proportional to intentionality.
The vitality that can stand the abyss of meaninglessness is aware of a hidden meaning within the destruction of meaning.

p. 177 - The Courage to Be (1952)