Angela Tilby's work on the teachings of Evagrius related to the "passions" was not only a great introduction of the subject, but also a good summary of the history of "sin" in general. In multiple places, Tilby carefully articulates the differences between the western idea of "sin" that developed out of Augustine, Gregory and Thomas, and that of the passions as it was articulated by Evagrius, and after him, somewhat, by his disciple, John Cassian. The result is not a "stepping away" from the problem or idea of sin. Far from it. Rather, Tilby uses the teachings of Evagrius to help re-orient the reader away from the "forensic" idea of sin (sin as an offence against God), toward an arguably more healthy approach that doesn't give sin such elevated status. God isn't mortified by our brokeness (sin) and thus only cautiously and hesitantly agrees to treat with us. Instead, God longs in every way possible to be in full relationship, and our passions, stirred up and confused by demonic forces (to use Evagrius' language) become the roadblocks that retard our progress toward perfection/union. Time and time again, Tilby re-engages with contemporary issues, showing where the wisdom of Evagrius can lead us to liberation from that which distracts, and thus to deeper relationship with God. Tilby does well to remind us, also, that our bodies are not something we can deny in this struggle, and that Evagrius' ascetical teachings have a practical place for the modern spiritual practitioner. Tilby does not "rehabilitate" Evagrius as much as compare his articulation of our tendencies and their meaning against more common western understandings of "sin". Her conclusions both demanding and hopeful. The concept of "total depravity" is jettisoned, but utter dependence on the grace of God, and the original imago dei, remains intact.