So when night came on some of the courtiers went to a contadino house to lodge, while others camped out alla stella, or in the albergo al fresco, while the Emperor was guided by the courtier to an old ruin, where in a solid rock there was a door of stone, which Virgil opened by a spell. (Sic in MS.)
The Emperor was then led through a long passage into a cave, which was dry and comfortable enough, and where the attendants made a bed, whereon His Highness lay down, and, being very weary, was soon asleep.
But he had not slumbered long ere, as it seemed to him, he was awakened by the loud barking of a dog, and saw before him to his amazement a marvellously beautiful lady clad in white, with a resplendent star (crescent) on her forehead. In her right hand she bore a white dove, and in her left another, which was black.
When the lady, or goddess, saw that the Emperor was awake, she let both the doves fly. The white one, after circling several times round his head, alighted on his shoulder. The black one also flew about him, and then winged its course far away.
Then the lady disappeared, and the white dove followed her, and sat on her shoulder as she fled.
The Emperor was so much amazed, or deeply moved, by this strange sight that he slept no more, but remained all night meditating on it, nor did he on the morrow give any heed to the chase, but ever reflected on the lady and her doves.
The courtier asked him what had occurred. And the Emperor replied:
“I have had a wonderful vision, and I cannot tell the meaning thereof.”
The gentleman replied:
“There is in Rome a young man, a poet and sage, of whom I have heard strange things, and I believe that he excels in unfolding signs and mysteries.”