How does Oscar Zeta Acosta use imagery in The Revolt of the Cockroach People?

Imagery:

"Three hundred brown-eyed children of the sun have come to drive the money-changers out of the richest temple in Los Angeles. It is a dark moonless night and ice-cold wind meets us at the doorstep. We carry little white candles as weapons. In pairs on the sidewalk, we trickle and bump and sing with the candles in our hands, like a bunch of cockroaches gone crazy."

"Once again, as at the St. Basil's riot, I am left on the front lines without a position. My heart begins to beat furiously. We are not far from the target."