The essay is about The Saint Augustine Confessions, by (big Shocker) St. Augustine. It is a literary analysis of a passage.

In the late 300's AD, a famous, well-educated "heretic" named Augustine came to the city of Milan. A former teacher, Augustine was known as a dazzling rhetorician, and became an orator for the city, gradually moving up the imperial hierarchy. In this passage from his Confessions, Saint Augustine turns the literary artistry of his oratorical talents to the task of describing his disillusionment with Manicheism in the form of a prayer addressed directly to the …

…lay in the fact that what I ought to have verified by investigation I had simply asserted as an accusation. You who are most high and most near, Most secret and most present, Have no bodily members, some larger, others smaller, But are everywhere a whole and never limited in space. You are certainly not our physical shape. Yet you made humanity in your image, and man from head to foot is contained in space.