Freedom, manifesting itself through anguish, is characterized by a constantly renewed obligation to remake the self which designates the free being.

[…]

Anguish as the manifestation of freedom in the face of self means that man is always separated by a nothingness from his essence.

[…]

Yet to flee anguish and to be anguish cannot be exactly the same thing. The fact that I am my anguish in order to flee it presupposes that I can decenter myself in relation to what I am, that I can be anguish in the form of “not-being it”, that I can dispose of a nihilating power at the heart of anguish itself.

Being and Nothingness (Jean-Paul Satre, 1943)