What's the best thing in the world?
June-rose, by May-dew impearled;
Sweet south-wind, that means no rain;
Truth, not cruel to a friend;
The poem begins with a child-like  rhetorical question , which she then goes on to answer herself, a device known as  hypophora . 
 There is a jaunty rhythm in the opening line which is deceptive; the poem contains several literary references.