As night approaches Sordello leads the poets to the angelically protected Flowery Valley wherein are found the souls of those rulers who were negligent of the spiritual life. Many of them were once old enemies but now they not only sing together but live in harmony, united also in paying tributes to the worth of some reigning monarchs or in expressing denunciation at the degeneracy of others. Here in the Valley of the Princes, while sleeping on the grass and among the flowers, Dante has a strange dream indicative of a near episode in his journey. He sees an eagle in the sky with wings wide open and intent upon swooping "Then wheeling somewhat more, it seemed to me Terrible as the lightning he descended And snatched me upward even to the (sphere of) fire Therein it seemed that he and I were burning, And the imagined fire did scorch me so That of necessity my sleep was broken." (IX, 28.) He awakes to find himself actually transported up the perpendicular wall to the entrance Gate of Purgatory. Virgil interprets the dream, pointing out that the eagle represents Lucia (Illuminating Grace) who has carried the poet to St. Peter's Gate. "Thou hast at length arrived at Purgatory; See there the cliff that closeth it around; See there the entrance, where it seems disjoined. While at dawn, which doth precede the day, When inwardly thy spirit was asleep Upon the flowers that deck the land below, There came a Lady and said: 'I am Lucia; Let me take this one up, who is asleep; So will I make his journey easier for him.' Sordello and the other noble shapes Remained; she took thee, and, as day grew bright, Upward she came, and I upon her footprints. She laid thee here; and first her beauteous eyes That open entrance pointed out to me; Then she and sleep together went away." (IX, 49.) The poet, as we said before, cannot enter Purgatory until he mounts the three steps of confession, contrition and satisfaction. Moreover, he must receive absolution from the angel-keeper, typical of the priestly confessor, and he must have seven P's branded upon his forehead. When this is done the angel opens the gate and Dante enters to the sound of a thunder-peal from the organ of Heaven, and of voices expressing the joy of Heaven upon the sinner's doing penance.