"the peacock spreads his fan" adds meaning to the line before - "man of peace or man of war". It suggests that one man can be both. A man can seem to be a man of peace and then spread his fan and show that he isn't. A man can go from "helping" to "killing" if the need be.
"the peacock spreads his fan" adds meaning to the line before - "man of peace or man of war". It suggests that one man can be both. A man can seem to be a man of peace and then spread his fan and show that he isn't. A man can go from "helping" to "killing" if the need be.