In "A Distant Mirror: The Calamitous 14th Century," Barbara W. Tuchman examines the significant influence of the Roman Catholic Church during a turbulent period in history. The quote, "It is necessary to salvation that every human creature be subject to the Roman pontiff," underscores the Church's assertion of authority over spiritual salvation, reflecting the prevailing belief that papal dominion was essential for divine favor and redemption.

Tuchman delves into the chaotic events of the 14th century, highlighting how the Church's power shaped political and social dynamics. The emphasis on submission to the papacy illustrates the intertwining of religion and governance, which was critical for the populace’s sense of order amid widespread turmoil, plagues, and wars. The Church positioned itself as both a spiritual refuge and a governing body, influencing individuals' lives profoundly during this calamitous era.