Aim and Background: The concept of mentalization as a purely human capacity refers to the understanding of one's own and others' psychological processes, which in 4 dimensions forms the basis of one's daily interactions.Today, this basic psychological process has been considered in all major mental disorders.In this study, a summary review of the concept and multidimensional nature of mentalization has been studied.Methods and Materials: This review study was conducted in December 2020 from indexed articles on mentalization and its four dimensions in PubMed Databases (SID), Scientific Information Database, Google Scholar, Scopus using related