Knowledge, love, and ecstasy in the theology of Thomas Gallus" provides the first full study of Thomas Gallus (d. 1246) in English and represents a significant advance in his distinctive theology. Boyd Taylor Coolman argues that Gallus distinguishes, but never separates and intimately relates two "interntional modalities" in human consciousness: the intellective and the affective. Both of these are for Gallus quite explicitly forms of cognition. Coolman shows that Gallus conceives these two cognitive modalities as co-exisiting in a mutally and reciprocally interdependent manner and that this interdependence is given a particular character by Gallus' anthropological appropriation of the Dionysian concept of hierarchy.