The psychodynamic literature has associated clients' silences in psychotherapy sessions with a variety of processes. These processes include wishes to merge with the therapist, to gain control in session, to communicate the unsayable, to express helplessness and, most frequently, the intertwined processes of resistance and regression. Experiences of obstructive silence—that is, moments in which clients detached from the process of therapeutic inquiry—were examined in this study. A grounded theory analysis was used to explore clients' experiences of silences in psychotherapy across psychotherapeutic modalities. Two types of obstructive pausing processes, Disengaged pauses and Interactional pauses, were identified. The implications of delineating conscious aspects of these complex experiences are stressed and techniques are suggested for therapeutic intervention in moments of experienced threat.