“Thy will be done,” in its full extent, must be the guideline for the Christian life. It must regulate the day from morning to evening, the course of the year, and the entire of life. Only then will it be the sole concern of the Christian. All other concerns the Lord takes over. This one alone, however, remains ours as long as we live. And, sooner or later, we begin to realize this. In the childhood of the spiritual life, when we have just begun to allow ourselves to be directed by God, we feel his guiding hand quite firmly and surely. But it doesn't always stay that way. Whoever belongs to Christ must go the whole way with him. We must mature to adulthood: we must one day or other walk the way of the cross to Gethsemane and Golgotha.
Source: Edith Stein: Essential Writings