Read the original poem excerpt. (1) Bless the captain, cried the harbor bells, (2) Bless the charts that led us through the foam, (3) Bless every rope that learned the language of return, (4) And bless the flags that flowered from the mast, (5) Yet not the hands below, tar-black and split, (6) Who rowed the glory into port unseen. Which line marks the clearest turn in the speaker's thought or tone?