Final answer:
In Sonnet 75, the speaker intends to immortalize his beloved by writing about her in poetry, a way to make her beauty and essence last beyond the confines of time, similar to themes in Shakespeare's Sonnet 18.
Step-by-step explanation:
Immortalizing the Beloved in Poetry
In Sonnet 75, the speaker plans to immortalize his beloved by capturing her beauty and essence through his poetry.
This intent reflects a common theme in Renaissance literature, where poets often aimed to eternalize the subjects of their affection or admiration by writing about them, thus defying the natural decay imposed by the passage of time.
The speaker believes that by committing his thoughts and feelings to verse, he can create a form of immortality for his love, one that will endure even as physical beauty fades and as both the lover and the beloved eventually pass away.
This idea of poetry as a means to preserve and celebrate love aligns with the views of other poets such as Shakespeare, whose Sonnet 18 reflects a similar desire to make the subject of his sonnets live forever in the lines he composes.