With respect to our psychoanalytic frame of reference allowing us to study the extent of the hypotheses concerning the religious phenomenon as formulated by Sigmund Freud and Jacques Lacan, in the context of a cross approach between the accuracy of the concept of conversion and of psychic mechanisms or phenomena at stake within conversions, and based on the testimonials of subjects acknowledging themselves in the experiment of conversion, we try to understand if and how religion is anchored in our cultural era through subversive effects it may have on the subject.