35 St. John M. Vianney, who, as We have said, was so devoted to the virtue of penance, was just as sure that "a priest must be specially devoted to constant prayer." (46) In this regard, We know that shortly after he was made pastor of a village where Christian life had been languished for a long time, he began to spend long and happy hours at night (when he might have been resting) in adoration of Jesus in the Sacrament of His love. The Sacred Tabernacle seemed to be the spring from which he constantly drew the power that nourished his own piety and gave new life to it and promoted the effectiveness of his apostolic labor to such an extent that the wonderful words that Our predecessor of happy memory, Pius XII, used to describe the ideal Christian parish, might well have been applied to the town of Ars in the time of this holy man: "In the middle stands the temple; in the middle of the temple the Sacred Tabernacle, and on either side the confessionals where supernatural life and health are restored to the Christian people." (47)
Source: Sacerdotii Nostri Primordia (Vatican.va)