Analysis of A Vision upon the Fairy Queen

Methought I saw the grave where Laura lay,
Within that temple where the vestal flame
Was wont to burn; and, passing by that way,
To see that buried dust of living fame,
Whose tomb fair Love and fairer Virtue kept,
All suddenly I saw the Fairy Queen,
At whose approach the soul of Petrarch wept ;
And from thenceforth those graces were not seen,
For they this Queen attended; in whose stead
Oblivion laid him down on Laura's hearse.
Hereat the hardest stones were seen to bleed,
And groans of buried ghosts the heavens did pierce :
Where Homer's spright did tremble all for grief,
And cursed the access of that celestial thief.