Petrarch employs metaphor to express his ideas of unattainable love by comparing his beloved or Laura to natural phenomenon.
Metaphors are frequently used in Petrarchan sonnets to express his ideas of unattainable love. For instance, the metaphor "In a tremendous storm on an unsecured raft" is also used to describe how he feels in response to her passing which shows that he lost his love.
His blason makes extensive use of metaphor and simile, but the sonnet as a whole is littered with them.
The simple facts that unattainable love gives pain, that time may not heal, and most significantly, that our confidence in God can remain constant as our eyes focus upward rather than toward ourselves or others, may then be revealed by Petrarch's use of metaphors in his sonnets.
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