The author proposes to consider some of the unconscious processes that guide the teacher-student relationship. These processes form a natural medium that effectively supports the teaching and the learning. Moreover, they can assume the quality of unelaborated toxic elements, becoming an obstacle to teaching and to learning. Starting from a study of Kaës, the paper describes some configurations of the unconscious dynamics between teacher and student and the influence of the fantasies of omnipotence and immortality on the quality of the relationship. The presentation of clinical material is used to support the hypothesis developed by the author and also to illustrate a working group with students that are going to became teachers.
Keywords: School, student, teacher, interpersonal relationship, transfert, idealization, omnipotence