The author presents some reflections on aspects of the psychic life that we all share and face in our everyday work and life. These same aspects, under certain historical circumstances together with elements of different origin, can enlarge, reach dimensions and cause consequences uncontrollable and extremely dangerous in private and public life. The author underlines that we are faced with areas of "psychic fundamentalism" in life, in the clinical work and in the institutional relationship with colleagues as we are in the theoretical disputes. This may happen any time we "shut the door" in front of the other people’s reasons and thinkings. Two clinical vignettes illustrate the papers.
Keywords: Fundamentalism, idealization, psychic reality and outer reality, intimacy, perversion, creation of intimacy.