The influence of charismatic groups on individuals' lives can be profound. The author reviews literature on the charismatic group known as Subud. Subud claims it has no theology, and members believe they directly communicate with their deity through the latihan ritual. To analyze the group, the author uses a systems approach to integrate psychological, psychiatric, sociological, and theological evidence. He shows that Subud's theology is based on the latihan and that the ails is to promote a dissociative state through unrestrained emotional expression in a group setting. Depression, hallucinations, and violent behavior have been reported. The author generates 2 hypotheses for future quantitative testing related to the relief effect operating and the effects on children. Applying the systems approach offers a way forward in the study of charismatic groups.