I believe the correct answer is to help the reader visualize a view where water and sky are difficult to tell apart.
The author is trying to portray an image where the water and the sky are somehow blending into each other - you can't tell where one ends and the other one begins, because both items are colored similarly - various shades of blue.
Gothic elements are presented in the book when the author reveals that Dr Jekyll and Mr Hyde are the same people just doubling. This is shown by revealing dark themes of the supernatural when Jekyll transforms into Hyde by the fear of committing horrific crimes as himself and feeling the guilt. Some gothic characteristics this gothic book includes is death and madness which is shown in one of the themes good versus evil. Jekyll and Hyde are metaphorical to the idea of good and evil exist in everyone and the struggle of the two sides raging within Jekyll which result in his death.
In the beginning of the speech called, “Blood, Toil, Tears, and Sweat,” Winston Churchill is discussing the new government that he has formed in the past three days after becoming prime minister. In paragraph two it states, “A war cabinet has been formed of five members, representing, with the Labour, Opposition, and Liberals, the unity of the nation.” In this part of the speech, he is explaining about the transition of the new government he has formed. Furthermore, he goes on by saying, “Other key positions were filled yesterday.” He does not explain what they are but we can assume that he has done something else too that was an important task to be completed. After explaining what he has already completed he gives a few more details about his future plans. In short, all we know from the beginning of the speech is that he has created a new government.