56 We readily grant that the natural and lawful desire a man has to love a woman and to raise a family is renounced by the celibate in sacred orders; but it cannot be said that marriage and the family are the only way for fully developing the human person. In the priest's heart love is by no means extinct. His charity is drawn from the purest source, (103) practiced in the imitation of God and Christ, and is no less demanding and real than any other genuine love. (l04) It gives the priest a limitless horizon, deepens and gives breadth to his sense of responsibility—a mark of mature personality—and inculcates in him, as a sign of a higher and greater fatherhood, a generosity and refinement of heart (105) which offer a superlative enrichment.
Source: Sacerdotalis Caelibatus (Vatican.va)