"[T]he conciliar debate on Marian devotion influenced the postconcilar debate on celibacy. Devoid of all connotations of sexuality, Mary had long served a twofold purpose in maintaining the discipline of celibacy. First, she provided a justification for a celibate priesthood. The medieval monk Petrus Damiani argued that because Jesus was born of a virgin, he could be touched only by virgin hands, thereby establishing a connection between sexual purity and the Eucharist celebration. Second, she served as a chaste role model and mother figure for priests. Mary, Pius XII wrote, provided the priest solace in his daily struggles against the temptations of the flesh: “When you meet very serious difficulties in the path of holiness and the exercise of your ministry, turn your eyes and your mind trustfully to she who is the Mother of the Eternal Priest and therefore the loving Mother of all Catholic priests.” Many bishops and theologians wanted the council to expand Marian doctrinal some supported conferring on Mary a new title, “Mother of the Church.” However, not all council fathers shared this view. Some preferred that piety be more centered on the Bible and the liturgy and less on devotional practices, including Marian worship. They felt that Marian devotion often diverged from the message found in scripture and in the liturgy. They also feared that any elaboration of Marian devotion would undermine the ecumenical movement. Thus, the seemingly innocent question of where to locate a statement on Mary had far-reaching theological and political ramifications. On August 29, by a margin of only forty votes, the council fathers decided in favor of incorporating a statement on Marian piety into ‘’Lumen Gentium’’. Although Paul VI later preempted the decision of the council fathers and bestowed upon Mary the title they had denied her, “Mother of the Church,” the popularity of Marian devotion continued to decline in Western-Europe."
January 1, 1970
https://en.wikiquote.org/wiki/Marian_devotions