Two main components of psychotherapy are :

Contractual nature, limited duration

The special relationship between the client and the therapist is known as the therapeutic relationship or alliance. It is neither a passing acquaintance, nor a permanent and lasting relationship. There are two major components of a therapeutic alliance. The first component is the contractual nature of the relationship in which two willing individuals, the client and the therapist, enter into a partnership which aims at helping the client overcome her/his problems. The second component of therapeutic alliance is the limited duration of the therapy. This alliance lasts until the client becomes able to deal with her/his problems and take control of her/ his life.