Integrative psychotherapy is both a study and a textbook of a comprehensive approach to psychotherapy based on practical philosophy, which is becoming dominant in the world thanks to the tendency towards synthesis and unification of different psychotherapeutic directions. However, the key aspects of integrative psychotherapy are precisely the opposite to the process of merging individual psychotherapeutic schools: they include, above all, emphasis on philosophical aspects of psychotherapy that determined its development from classical psychoanalysis to modern partial approaches to personal change, with modal rather than syllogistic logic as the core of psychotherapeutic thinking. The book discusses important elements of integrativeness in psychotherapy: the validity of psychiatric diagnoses, the status of psychology from a philosophical perspective, the phenomenon of fear in psychotherapy, and the spiritual and political aspects of psychotherapy. The book deals with psychoanalytic theory and practice primarily in the field of Lacanian psychoanalysis because its fundamental concepts, based on traditional Kraepelin’s psychiatry, indicate long-term validity and provide proof of the theoretical and practical value of integrative and modal thinking in psychotherapy.