Behold her, single in the field,
Yon solitary Highland Lass!
Reaping and singing by herself;
Stop here, or gently pass!
Alone she cuts and binds the grain,
And sings a melancholy strain;
O listen! for the Vale profound
Another imperative follows, given emphasis by the exclamation mark and the shorter line – a  trimeter  rather than the  tetrameters  that preceed it. The reader’s likely response is to want to know more.
The Solitary Reaper