Sentence:  At length the universal Wreck appear'd,/ To Cæsar's self, ev'n worthy to be fear'd./ Why all these Pains, this Toil of Fate (he cries)/ This Labour of the <WSD>Seas</WSD>, and Earth, and Skies?/ All Nature, and the Gods at once alarm'd,/ Against my little Boat and me are arm'd. 
Meaning of the word marked with <WSD> tags:  The ocean; the continuous body of salt water covering a majority of the Earth's surface.