I am referencing to Lord Byron's Childe Harold's Pilgrimage (see: Wikipedia article).
Here is the opening stanza of the work (TO IANTHE):
Not in those climes where I have late been straying,
Though Beauty long hath there been matchless deemed,
Not in those visions to the heart displaying.
Forms which it sighs but to have only dreamed,
Hath aught like thee in Truth or Fancy seemed:
Nor, having seen thee, shall I vainly seek.
To paint those charms which varied as they beamed—
To such as see thee not my words were weak;
To those who gaze on thee what language could they speak?
My question is about the capitalized nouns i.e. "Beauty", "Truth" and "Fancy".
Why are those three nouns capitalized?
I assumed the choice of the capital letter could be denoting an allegory. But then why capitalize a noun and not another? In other words why would Byron choose to capitalize those three nouns above but not other nouns in the stanza?