[ABSTRACT] In this paper the author review three subjects that are the basement of our professional practice: 1.- Clinical experience: Uribe Kosta service is described emphasizing the importance of groups as a therapeutical tool and as a mean to understand the mental illness and human suffering. 2.- Training: The difficult process of training in group psychotherapy is reviewed. An example is the Master in Group Psychotherapy at University of Deusto, Basque Country, Spain. 3.- Finally, the resist