Canto XX. After a period of silence, the same Eagle (an emblem of the Empire) proceeds to exalt certain rulers, especially those glorified spirits which form the pupil of his eye (David), and his eyelids (Trajan, Hezekiah, Constantine). As he mentions their names they glow like priceless rubies, and he explains that, although some of them lived before Christ was made flesh, all have been redeemed because Faith, Hope, and Charity are their sponsors. "The three nymphs, Whom at the right wheel thou beheld'st advancing, Were sponsors for him, more than thousand years Before baptizing. O how far removed, Predestination! is thy root from such As see not the First Cause entire: and ye, O mortal men! be wary how ye judge: For we, who see our Maker, know not yet The number of the chosen; and esteem Such scantiness of knowledge our delight: For all our good is, in that primal good, Concentrate; and God's will and ours are one." _Canto XXI._ Meantime Beatrice, who has grown more and more beautiful as they rise, explains, when Dante again gazes upon her, that she no longer dares smile, lest he be consumed like Semele when she beheld Jove. The magnetic power of her glance suffices again, however, to transfer him to the seventh heaven, that of Saturn (revolved by Thrones). This sphere is the abiding place of contemplative and abstinent hermits and monks. There our poet beholds a ladder, up whose steps silently ascend those whose lives were spent in retirement and holy contemplation. Amazed by all he sees, and conscious he no longer hears the music of the spheres, Dante wonders until informed by one of the spirits, coming down the steps to meet him, that at this stage the heavenly music is too loud and intense for human ears. Seeing his interlocutor suddenly become a whirling wheel of light, Dante inquires what this may mean, only to be told spirits obscured on earth by fleshly garments shine brightly in heaven. The spirit then gives his name (St. Peter Damian), vividly describes the place where he built his hermitage, and declares many modern prelates have sinned so grievously through lechery or avarice that they are now detained in Inferno or Purgatory. As he speaks, spirit after spirit flits down the stairs, each bound on some errand of charity to the spheres below. _Canto XXII._ Startled by a loud cry, Dante is reassured by St. Damian's statement that no harm can befall him in heaven. Next Beatrice directs his attention to some descending spirits, the most radiant of which is St. Benedict, who explains how blissful spirits often leave the heavenly abode "to execute the counsel of the Highest." He adds that Dante has been selected to warn mortals, none of whom will ever be allowed to venture hither again. Then St. Benedict describes his life on earth and inveighs against the corruption of the monks of Dante's time.