Multimodal therapy is an integrative form of psychotherapy developed by Arnold A. Lazarus during the 1970s. It evolved from behavior therapy but gradually expanded to include cognitive, emotional, interpersonal, biological, and experiential dimensions of human functioning. Lazarus believed that no single therapeutic approach could effectively address the wide range of human problems because individuals differ in personality, experiences, and needs. Therefore, therapists should draw techniques from different schools of psychotherapy in a systematic and evidence-based manner rather than adhering rigidly to one theoretical orientation. This approach is based on technical eclecticism, where interventions are selected according to the client's specific problems and treatment goals. The development of multimodal therapy was influenced by advances in behavioral psychology, cognitive psychology, social learning theory, and clinical research. Initially, behavior therapy focused mainly on observable behavior and conditioning principles. However, Lazarus observed that emotional disorders involved not only behavior but also thoughts, feelings, relationships, physiological reactions, and environmental influences. As a result, he proposed a broader framework that evaluates multiple aspects of an individual's functioning. His work culminated in the development of the BASIC I.D. model, which became the foundation of multimodal therapy. The central concept of multimodal therapy is that human personality consists of seven interacting modalities represented by the acronym BASIC I.D. The first modality, Behavior (B), refers to observable actions, habits, and responses that may need modification. Affect (A) includes emotions, moods, and feelings such as anxiety, sadness, anger, or happiness. Sensation (S) refers to physical experiences, including pain, tension, fatigue, relaxation, and sensory