This doctoral seminar is dedicated to the elucidation of two key pneumatological questions: (1) the Father-Son relation in the Holy Spirit and (2) the generation of the Son in the Holy Spirit. The goal is to ponder more deeply the person of the Holy Spirit in God and examine both his active and passive “roles” in the Godhead. This reflection serves as grounds to approaching the issue of reciprocity in the triune mystery and the meaning of divine order and hierarchy—issues upon whose satisfactory articulation hinges the elaboration of an adequate theological anthropology. The seminar will follow a historical path and examine some of the main pneumatological texts of the Christian tradition as well as some contemporary authors.