Quatrain 1 introduces the situation: Sometimes, when I think about the past, I regret the things and people I've lost.It may help to examine an example, such as Shakespeare's 'Sonnet 30' X Research source :
The turn, which occurs in the 13th line of the Shakespearean sonnet, offers a resolution or insight into to the problem developed in the first three quatrains. Each quatrain should build toward the final couplet, where you will have a turn, or a volta.
Think of each quatrain as a little thought bubble, like a paragraph, in which you explore an element of the subject of your poem. Although your poem should have a single focus, each stanza of the sonnet should develop the idea further.
