Foucault probably offers the most helpful theoretical approach. His “archaeology of knowledge” suggests a way to study texts as sites that bear the marks of epistemological activity, and it has the advantage of doing justice to the social dimension of thought.

Builds on the idea of the Soul in Michel Foucault's work which originally was mentioned as a secondary concept in Discipline and Punish

We need a picture of this guy

Aquí definen en un par de líneas biopolítica y panopticismo, de Foucault