How does Carlos Castaneda use imagery in A Separate Reality: Further Conversations with Don Juan?

Example of Imagery:

"Eligio's body crumpled into a contorted position. He lay on his right side with his front toward me and his hands between his legs. His body gave a powerful jump and he turned on his back with his legs slightly curved. His left hand waved out and up with an extremely free and elegant motion. His right hand repeated the same pattern, and then both arms alternated in a wavering, slow movement, resembling that of a harpist. The movement became more vigorous by degrees. His arms had a perceptible vibration and went up and down like pistons. At the same time his hands rotated onward at the wrist and his fingers quivered. It was a beautiful, harmonious, hypnotic sight. I thought his rhythm and muscular control were beyond comparison."