Psychotherapy Through the use of the treatment relationship, therapy is an opportunity to learn to engage more fully and productively. The therapist is like a teacher, helping the patient (student) experience something in a new way. This is reflected in the name given to one treatment model, "cognitive-behavioral therapy," which (like most psychotherapies) is based on psychoanalysis. You can't fully understand something until you have experienced it. That is why it's so hard to explain an experience -- whether of psychotherapy, or riding on a roller-coaster -- to someone who hasn't "been there."
There are numerous Types of Therapy
Cartoon video: "Ask your doctor if psychoanalysis might be right for you."