Chaucer's "Prologue to the Canterbury Tales" is a profound literary work that subtly and masterfully critiques the Catholicism of his time. Written in the late 14th century, this piece offers a compelling commentary on the moral and ethical complexities of medieval Catholicism. Through a diverse group of pilgrims embarking on a journey to the shrine of Saint Thomas Becket, Chaucer unveils a scathing critique of the Church. Chaucer's characters, drawn from various societal strata, serve as vessels through which he exposes the moral decay and hypocrisy within the clergy and religious institutions. These pilgrims, including clergymen and church officials, are depicted with remarkable candor, revealing their personal vices, avarice, and moral failings. Such portrayal challenges the prevailing idealized image of religious piety, presenting a stark contrast between the teachings of the Church and the actions of its representatives. the character of the Pardoner stands out as a symbol of the Church's corruption, as he shamelessly peddles indulgences and relics for personal gain. Chaucer's critique of this exploitative figure serves as a scathing commentary on the Church's commercialization of faith.