In “the scarlet ibis,” old woman swamp is a symbol of to doodle and his brother.

the word that best matches the meaning of the expression "went to the big ocean" is died.

the goldfish died, which is why the father looks at the children mournfully. the "big ocean" is the father's way of saying fish heaven. he could have just said that the goldfish died, but this way, the children imagine the fish in a bigger, better place instead of just picturing a dead fish.

explanation:

a term is used to describe a sudden revelation in a short story is "showing forth".