The Divine Arts wielded by the Priest rank not only saw minor correlations with "Spirit" and "Magic Power" attributes but also had a significant correlation with the unique "Faith" attribute of the priesthood.
Engaging in Church and clergy duties presented opportunities to enhance one's Faith attribute.
Additionally, if one believed in the Goddess of Destiny, the Faith attribute would apply universally across all chapters of Divine Arts; but if the belief was in a specific deity, the Faith attribute would apply only to a single chapter, granting exceptionally superb support to the Divine Arts' effect within that chapter.