But what gives power its force, what makes it so hard to get around and master, is that power is positive in its effects.
Power invents, power creates, power produces. It produces more than a law that forbids desire--it produces desire itself, power induces and produces desire, power gives desire its objects, power, indeed, is desirable. Power not only produces desire; to an equal degree, and this goes much farther, beyond the law that is imposed on the subject, power produces the very form of the subject, it produces what makes up the subject. The form the subject takes is, precisely, determined by power.
Power produces desire and the subject.
Foucault, from "Schizo-culture: Infantile Sexuality", in Foucault Live, collected interviews, pg 158