. . . For as the best physicians bring back those who are far gone in sickness with careful treatment to a state of health, not only treating them according to the laws of the medical art, but sometimes also giving them gratification: even so God conducts to virtue those who are much depraved, not with great severity, but gently and gradually, and supporting them on every side, so that the separation may not become greater, nor the error more prolonged.
And the same truth is implied in the parable of the prodigal son as well as in this. For he also was no stranger, but a son, and a brother of the child who had been well pleasing to the father, and he plunged into no ordinary vice, but went to the very extremity, so to say, of evil, he the rich and free and well-bred son being reduced to a more miserable condition than that of household slaves, strangers, and hirelings. Nevertheless he returned again to his original condition, and had his former honour restored to him.
The Following is an excerpt from Great Lent, by Alexander Schmemann
From Chapter 2: Preparation for Lent
On the third Sunday of preparation for Lent, we hear the parable of the Prodigal Son (LK. 15:11-32). Together with the hymns on this day, the parable reveals to us the time of repentance as man's return from exile. The prodigal son, we are told, went to a far country and there spent all that he had. A far country! It is this unique definition of our human condition that we must assume and make ours as we begin our approach to God. A man who has never had that experience, be it only very briefly, who has never felt that he is exiled from God and from real life, will never understand what Christianity is about. And the one who is perfectly "at home" in this world and its life, who has never been wounded by the nostalgic desire for another Reality, will not understand what is repentance.