The male body is male throughout, right down to each cell of which it consists, and the female body is utterly female; and this is also true of their whole empirical experience and ego-consciousness. At the same time both share an identical human nature, but at no point does it protrude, neutrally, beyond the sexual difference, as if to provide neutral ground for mutual understanding. Here there is no universale ante rem . . . The human being, in the completed creation, is a 'dual unity', two distinct but inseparable realities, each fulfilling the other, and both ordained to an ultimate unity that we cannot as yet envisage. (TD2, 364–5; emphasis added)