frak before them in robes resplendent : flowing , bilious brilliance , gold-threaded with a large square silver medallion set across his breast ... a true breastplate but one of such lightness that frak moves with easeit is this subtlety of motion , this fluidity of speech , this overall majestic and magical presence of his words which all at once confirm in each of them that he is truly high priest ... that they are chosen , as he says , chosen sons of the almighty father .