The author, as qualified psychologist, is aptly comparing the choice and option of a teenager Prince Rastko living in the 12th Century Serbia with a youth of our own Century.
The young Prince has chosen the highest ideal of monastic resemblance (similitude) to Christ-God. After a long ascetic maturation on Mount Athos Saint Savva returns to hi,s native land and gives the inerasable imprint of his love for Christ and His Heavenly Kingdom upon all of the Serbians.
The predicament of a modern Serbian youngster is, essentially, similar to that of Prince Rastko: to choose the sacrificial Love of our Divine Brother and Saviour Jesus — or the egoistic Hell of Satan.
The living example of St. Savva’s option for Christ even today did not lose of its attraction for our youth.