What is Love's Secret?
Love's secret is that it should never be directly communicated, as it is something that moves and works silently and invisibly.
In line 7, the words trembling, cold, and ghastly fears suggest that the speaker is expressing their fear and vulnerability when trying to communicate their love to someone. These words add a sense of fear and desperation to the speaker's expression of love, emphasizing the idea that expressing love through words can be a difficult and uncertain endeavor.
In line 4, the phrase "silently, invisibly" is used to describe the way love moves and works, suggesting that it is something that cannot be seen or directly communicated. In contrast, in line 11, the phrase is used to describe the way the traveler came and took away the speaker's love, suggesting that the speaker's love was taken away without them even realizing it, emphasizing the idea that love can be lost without being aware of it. The tone of line 4 is more contemplative, while the tone of line 11 is more regretful.