A distinguished historian of ideas long associated with detailed narratives and analyses of the lives and ideas of the founding figures of psychoanalysis interviews Marc-François Lacan, younger brother of Jacques Lacan and a Benedictine monk. Much is revealed in this essay, originally published in French, of the thinking of both men, most startlingly perhaps of the extent to which there are religious elements in the background and even the thought of Jacques Lacan, that commanding personality in French psychoanalytic circles.