This article presents a description of a psychotherapeutic process carried out with a child based on the existentialist theory of Jean-Paul Sartre. In it, some issues of childhood described by Sartre's theory and some existentialist authors are discussed and some reflections about this period of life and its consequences for the constitution of personality are developed. The psychotherapeutic process described here involved the active participation of the child's mother and this was a factor considered crucial for the changes in the personality of the child in therapy. In addition, psychotherapy based on Sartre's theory aimed to help the child to understand how his personality was being constituted by then, making changes in his being project in order to achieve his desire. After all, it is considered that when the process was finished, it was possible for the child and his family to overcome the impasse and suffering that led them to seek the help of psychology.
Children; Clinical psychology; Sarte, Jean-Paul, 1905-1980; Existentialism