The sea is a large body of water
Answer: I do not know if this is a multiple choice question or not, but I would contend that the blue flower is a reference to Neruda's country, Chile.
Explanation: The color blue is part of the flag of Chile. It symbolises, in part, the Pacific Ocean, and I believe that in these lines of his famous poem, the Chilean poet Pablo Neruda was referring to his beloved country, which he had had to abandon due to his political views. He is telling his lover that he wants her laughter like the flower he was waiting for, "the blue flower, the rose of my echoing country." He cannot have his country, but his lover's laughter will bring him the comfort that he needs in these difficult days away from his homeland.
I have hated words and I have loved them, and I hope I have made them right.” ... pg. 528
"You want to know what I truly look like? I'll help you out. Find yourself a mirror while I continue." pg. 307
"Sometimes I imagined how everything looked above those clouds, knowing without question that the sun was blond, and the endless atmosphere was a giant blue eye." pg. 350
