The work brings the importance that psychology has for theology, analysing the characteristics of the dialogue between them, with the purpose of instrumentalising the counsellor, within the context of Practical Theology. This possibility of expanding the limits of training, considering the challenges of pastoral care in receiving people with increasingly complex emotional and spiritual difficulties, makes this work relevant to the present day. The history of the last three centuries where psychology was born as a science (1879) and developed in various types, methods and areas, approaching and relating to theology, can answer the following question: what types of psychology favour dialogue with theology, contributing to excellence in caring for lives? The rapprochement between the two sciences has been marked at the same time by moments of tension and moments of relative harmony. The search for this interdisciplinarity can generate benefits for both theology and psychology, even if it is necessary to overcome the existing clashes between them.