The notion of Spirit in the three monotheistic religions and in the philosophical research

The reference to the theme of the Spirit passes throughout the whole history of the Western culture. It is present from the beginnings, in the Jewish religion and the Greek culture; these two main roots are picked up and integrated in the experience and reflection that Christianity brought forth. The reflection on the Spirit, however, is not an exclusive privilege of the West: we find it in Islam and also in other cultures and religions.