the poor Penia, by definition, by structure has properly speaking nothing to give, except her constitutive lack, aporia.
Lacan reads Penia’s aporia as a structural condition of constitutive lack, equating it with the formula ‘to give what one does not have’ and grounding the entire Platonic economy of desire in this productive insufficiency.
, The Seminar of Jacques Lacan, Book VIII: Transference, 2015thesis