Therapists new to Coherence Therapy sometimes understand it as being a function-of-the-symptom model.  Actually, its central principle of symptom coherence encompasses both symptoms that have a function as well as functionless symptoms, which are coherent even though functionless.  This Clinical Note maps out these different modes of symptom coherence.  Familiarity with these variations enables a therapist to quickly understand the material emerging during the discovery phase of Coherence Therapy.