<P>Stolorow and his collaborators'' post-Cartesian psychoanalytic perspective ¿ intersubjective-systems theory ¿ is a phenomenological contextualism that illuminates worlds of emotional experience as they take form within relational contexts. After outlining the evolution and basic ideas of this framework, Stolorow shows both how post-Cartesian psychoanalysis finds enrichment and philosophical support in Heidegger''s analysis of human existence, and how Heidegger''s existential philosophy, in turn, can be enriched and expanded by an encounter with post-Cartesian psychoanalysis. In doing so, he creates an important psychological bridge between post-Cartesian psychoanalysis and existential philosophy in the phenomenology of emotional trauma.</P>