Sidney's 10th sonnet of Astrophil and Stella dances around the subject of reason. Thus my nearly cheating selection for the key word in this sonnet is the word Reason. The entire poem is an apostrophe addressing his own reason and berating it for getting in the way of and arguing against sense and love. The couplet provides a sort of turn in Reason's reasoning whereby rather than confusing and opposing the love he has for Stella Reason "offeredst straight to prove By reason good, good reason her to love." This turn represents a rationalization for the character of Astrophil as, at the end of the fourth quatrain he, and Reason, are "strake...with Stella's rays." Stella's beauty is apparently enough to bring Reason itself to heel.
This is some of the glossiest writing weve encountered thus far. AN EXAMPLE OF THIS IS THE AUXESIS LOCATED IN THE FIRST QUATRAIN OF THE FIRST SONNET. This build-up expresses Sidney's burgeoning emotion and need to express himself to Stella. It rushes the reader through the lines with a hint of the desperation Sidney must have felt. I'll save some other examples of his aesthetics for class but I just wanted to note the placement of the auxesis and that I found these sonnets particularly beautiful.