Final answer:
In both 'Sonnet 29' and 'Sonnet 30', the speaker's mood is lifted by the thoughts of a loved one, which turns his lament into contentment.
Step-by-step explanation:
In both 'Sonnet 29' and 'Sonnet 30', the speaker finds solace and a lifted mood in the thoughts of a loved one. In 'Sonnet 29', the speaker is initially in a state of despair, feeling unlucky and in disfavor with fortune and men's eyes. However, this mood is swiftly reversed when the speaker thinks of a beloved person, which brings such richness that it turns his state to one of such sweetness that he would not change his state with kings. Similarly, in 'Sonnet 30', the speaker feels a sense of loss and waste for things past, until he thinks of a dear friend, which ends all his grievances and fills him with precious memories—effectively uplifting his spirits.
In "Sonnet 29," the speaker feels low and discouraged, but his mood lifts when he thinks about his beloved. He believes that the love and companionship of his loved one can bring him joy. In "Sonnet 30," the speaker reflects on past failures and losses but finds solace and contentment in the memories of his relationships with loved ones.