The aim of the study was to investigate the psychological processes pointed out by dream contents and themes. For this purpose, a model that indicates mediation roles of interpersonal relationship style and dysfunctional attitudes, on the relationship between immature and neurotic defense mechanisms and disturbing dream themes in addition to direct relationship between these defense mechanisms and disturbing dream themes, was examined. The sample included 610 adults within the age range of 18 to 65. The results of the structural equation modeling analysis demonstrated that the proposed model fitted the values for a good model and explained 22% of the variance. Considering that the research focused on dream processes is limited in the literature, this research plays a crucial role in providing important information on the issue.