"Like to the lark at break of day arising / From sullen earth sings hymns at heaven's gate"
The enjambment (continuation of a sentence without a pause) creates a fluid and uninterrupted flow, emphasizing the seamless transition from despair to joy.
"Like to the lark at break of day arising"
The simile emphasizes the transformative power of the speaker's thoughts about the beloved, comparing it to the uplifting song of a lark heralding a new day.
"Yet in these thoughts myself almost despising, / Haply I think on thee, and then my state"
The alliteration in this line serves to create a rhythmic and melodic quality, drawing attention to the speaker's contrasting emotional states. The repetition of the "th" sound contributes to a smooth and flowing cadence, enhancing the musicality of the verse.
"And trouble deaf heaven with my bootless cries"
Here, heaven is personified as being deaf to the speaker's cries. This personification attributes human characteristics (deafness) to heaven, emphasizing the speaker's sense of despair and the perceived lack of response or solace from a higher power.
"From sullen earth sings hymns at heaven's gate;"
In this line, earth is personified as "sullen," suggesting a gloomy or melancholic state. This personification adds a touch of spirituality to the natural world, aligning with the theme of the transformative power of love.
"I all alone beweep my outcast state"
The use of the term "outcast state" is a hyperbolic expression of the speaker's feelings of isolation and despair. While the speaker may feel emotionally distressed, the extreme label "outcast state" exaggerates the depth of his sense of alienation.