59 At times loneliness will weigh heavily on the priest, but he will not for that reason regret having generously chosen it. Christ, too, in the most tragic hours of His life was alone—abandoned by the very ones whom He had chosen as witnesses to, and companions of, His life, and whom He had loved "to the end" (110)—but He stated, "I am not alone, for the Father is with me." (111) He who has chosen to belong completely to Christ will find, above all, in intimacy with Him and in His grace, the power of spirit necessary to banish sadness and regret and to triumph over discouragement. He will not be lacking the protection of the Virgin Mother of .Jesus nor the motherly solicitude of the Church, to whom he has given himself in service. He will not be without the kindly care of his father in Christ, his bishop; nor will the fraternal companionship of his fellow priests and the love of the entire People of God, most fruitful of consolations, be lacking to him. And if hostility, lack of confidence and the indifference of his fellow men make his solitude quite painful, he will thus be able to share, with dramatic clarity, the very experience of Christ, as an apostle who must not be "greater than he who sent him," (112) as a friend admitted to the most painful and most glorious secret of his divine Friend who has chosen him to bring forth the mysterious fruit of life in his own life, which is only apparently one of death. (ll3)
Source: Sacerdotalis Caelibatus (Vatican.va)