How does Janet Reitman use imagery in Inside Scientology: The Story of America's Most Secretive Religion?

Imagery:

"Messengers washed and ironed Hubbard's clothes, laid out his pajamas, prepared his bath, helped him dress, attended him while he ate, and took careful notes on every minute of his day...Messengers lit his cigarettes, and when he walked around on deck, two would accompany him at all times; one person carrying his ever present pack of Kools, the other holding an ashtray to catch the droppings."