A constant  o'er the Palace flies;
Strange Phantoms rising as the Mists arise;
Dreadful, as Hermit's Dreams in haunted Shades,
Or bright as Visions of expiring Maids.
Now glaring Fiends, and Snakes on rolling Spires,
Pale Spectres, gaping Tombs, and Purple Fires:
Now Lakes of liquid Gold,  Scenes,
And Crystal Domes, and Angels in Machines.