The 'I think'
There is a version of the "Cogito" ['I think, therefore I exist': GT]
that Kant is found endorsing, but not in the manner intended by
Descartes. At B132 [of the Critique of Pure Reason] he says that,
It must be possible for the "I think" to accompany all my
representations, otherwise, something would be represented in me
Freedom from the self is NOT an existentialist concept, but it does occur frequently in other places throughout philosophy. One of the most famous is in Plato's Republic, where the unjust man is depicted as intrinsically unhappy because he is a slave to his own desires.
Freedom from the self is a concept also frequently found in religious philosophies, ...