This article is a contribution to the ongoing debate on the psychology of twins, in particular it deals with the problem of their separation. In the first part, the author introduces some Indo- European myths in order to outline the archetypal background of twin psychology. Afterward, she analyses the most significant studies of identical twins, which show how the sibling complex is more emphasized than the mother and the father complex in the twin psyche. Hence, the analytical treatment has to take the former into account during the whole process. Eventually, the article ends with some reflections on the separation process inspired by a clinical case.
Keywords: Twins, sibling complex, separation, couple effect, to give way