How does Aldous Huxley use imagery in Ape and Essence?

Example of Imagery:

"Vertical stripes, horizontal stripes, noughts and crosses, eagles and hammers. Mere arbitrary signs. But every reality to which a sign has been attached is thereby made subject to its sign. Goswami and Ali used to live at peace. But I got a flag, you got a flag, all Baboon-God's children got flags. So even Ali and Goswami got flags; and because of the flags it immediately became right and proper for the one with the foreskin to disembowel the one without a foreskin, and for the circumcised to shoot the uncircumcised, rape his wife and roast his children over slow fires."