This text proposes an analysis of the phenomenon of faith in the tradition and spirituality of the Eastern Church. Starting from the relationship between phenomenology and theology, the article uses a theo-phenomenological method to depict the phenomenon of faith both theologically and phenomenologically. This article also argues that non-religious faith—either natural or philosophical—is the foundation of religious faith. According to Orthodox spirituality, faith is not reduced to a set of theoretical teachings and dogmas; they constitute only the first type of (...) faith, “simple faith”. At the same time, faith is also a form of experience, which has ascetical, ethical, and mystical dimensions; they characterize the second type of faith, faith as contemplative sight and knowledge. (shrink)