Abstract
It is a question of thinking, with the help of the phenomenological attitude, the phenomenon of religion, understood as an experience of religiosity. The experience of religiosity points to a radical and limiting experience: it shows our historical constitution. For this reason, and with the help of Heidegger in his Phenomenology of Religion, it was thought that this historical being, characteristic of each existence, founds a clear representation in the living spirit of the primitive Christianity mentioned in the Pauline Epistles, especially in the phenomenon of the Proclamation of Christ, in its transforming experience. Finally, a mode of conclusion, the meditation addresses the theme of temporality, which was opened by the Pauline experience of the Proclamation, understanding that there is a principle to think the most peculiar of ourselves, our selfhood. The experience of religiosity would open this time horizon that we are ourselves: I-am-been.