This momentous decree came as a great beacon light of
v
hope to millions of Negro slaves who had been seared in
daybreak to end the long night of their captivity.
But one hundred years later, the Negro still is not free.
One hundred years later, the life of the Negro is still sadly
crippled by the manacles of segregation and the chains of
discrimination. One hundred years later, the Negro lives
on lonely island of poverty in the midst of a vast ocean
of material prosperity. One hundred years later, the
Negro is still languished in the corners of American
society and finds himself an exile in his own land.
-"I Have a Dream,'
Martin Luther King Jr.

What is an example of anaphora in this passage?

What is emphasized by the use of anaphora in this
the flames of withering injustice. It came as a joyous
passage?