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The Seminar XX is, then, a theory of jouissance in its complex relationship with love, where Freud's emphasis on narcissism remains evident, and where the opposition between desire and love's demand, which dominated the so-called "classical" Lacanian theory (we propose here a rather flexible periodization), is displaced to a more central articulation and perhaps to a more consistent involvement with the deepening of the clinic: the opposition between phallic jouissance, and the modality that will be referred to as the other jouissance, the one Lacan named "supplementary jouissance." It will allow Lacan (in Chapter VI of the Seminar, "God and Woman's Jouissance") to assign to the mystic her real fall (or fall toward the real). As a result, the reputed mystical delusions are just the "mere business of fucking." If phallic jouissance, as a whole and in its more persistent meanings, can encapsulate the entire psychoanalytic problematic, including issues such as the pleasure of the organ, the pleasure principle, sexual satisfaction, sexual fetishism, perversion, etc.—to the point where it simplifies these principles—it now has to contend with this other dimension of itself, one that is often considered enigmatic, an other jouissance, one called the other jouissance[…]