XVI. The Worldly Hope men set their Hearts upon Turns Ashes--or it prospers; and anon, Like Snow upon the Desert's dusty Face, Lighting a little hour or two--is gone. XVII. Think, in this batter'd Caravanserai Whose Portals are alternate Night and Day, How Sultan after Sultan with his Pomp Abode his destined Hour, and went his way. XVIII. They say the Lion and the Lizard keep The courts where Jamshyd gloried and drank deep: And Bahram, that great Hunter--the Wild Ass Stamps o'er his Head, but cannot break his Sleep. XIX. I sometimes think that never blows so red The Rose as where some buried Caesar bled; That every Hyacinth the Garden wears Dropt in her Lap from some once lovely Head. XX. And this reviving Herb whose tender Green Fledges the River-Lip on which we lean-- Ah, lean upon it lightly! for who knows From what once lovely Lip it springs unseen!