13 All these things, however, were only a preparation or sort of novitiate where he trained his heart in piety, his mind in study, and his body in work (always remaining a modest and humble youth) for that life in which he would be as clay in the hands of God and His Vicar on earth. The innovators of that time despised just that kind of life of preparation. The same folly leads the modern innovators also to spurn it. They fail to see that God's wondrous works are matured in the obscurity and silence of a soul dedicated to obedience and contemplation. They cannot see that just as the hope of the harvest lies in the sowing, so this preparation is the germ of future progress.
Source: Editae Saepe (Vatican.va)