It is said that the truth will set you free. In psychotherapy patients liberate from the psychological stressors in their lives through uncovering the truths about themselves.
This might sound counterintuitive if we believe that we know everything about ourselves or that we are in total control of the decisions we make. The field of psychology has proven empirically that this is not the case, and psychoanalysis has provided theories about how this is so.
Put briefly, the human person is an integral part of his/her society and culture through which our psychological processes are influenced.
Knowing the truth is coming to terms with this realization. That we become depressed, anxious, angry… etc because we have lost the sense of our of needs. In so doing we turn them into symptoms, so that we do not have to face these needs.
An example would be that of a woman who is depressed and no longer able to enjoy simple things in life. Through therapy she uncovers the truth that her going into depression is a means for her to not face up to an inner rage, for it was safer to lock oneself into a state of depression than to attack another person, especially an abusive childhood caregiver. Realizing the truth of her rage, she is able to talk about it and understand it. In Gestalt therapy, the client is encouraged to express this rage through art, speaking, acting out, writing… etc. When the underlying issue is set free, the depressive symptoms lose their foundation as well.
Therapy in this way is done with the patient being in control of his/her progress. Therapists in general do not advice, coerce or make analysis to tell the clients what the truth is. Clients find this out through dialogue with the therapist. The client has the agency to his/her own truths and healing.
When patients are asked retrospectively what they gained from a period of psychotherapy, their answers frequently feature an increase in their sense of agency: “I learned to trust my feelings and live my life with less guilt,” or “I got better at setting limits on people who were taking advantage of my tendency to comply,” or “I learned to say what I feel and let others know what I want,” or “I resolved the ambivalence that had been paralyzing me,” or “I overcame my addiction” are typical comments (McWilliams 1990 p. 16).