Sexuality is the only drive that is in itself hindered, perverted: simultaneously insufficient and excessive, with the excess as the form of appearance of the lack. On the one hand, sexuality is characterized by the universal capacity to provide the metaphorical meaning or innuendo of any activity or object–any element, including the most abstract reflection can be experienced as ‘alluding to that‘ (suffice it to recall the proverbial example of the adolescent who, in order to forget his sexual obsessions, takes refuge in pure mathematics and physics–whatever he does here again reminds him of ‘that’: how much volume is needed to fill out an empty cylinder? How much energy is discharged when two bodies collide?…). The universal surplus–this capacity of sexuality to overflow the entire field of human experience…is not the sign of preponderance. Rather, it is the sign of a certain structural faultiness: sexuality strives outwards and overflows the adjoining domains precisely because it cannot find satisfaction in itself, because it never attains its goal.
Slavoj Žižek
sexuality