How does Myra McEntire use imagery in Hourglass?

Imagery:

"The pain in my head caused my stomach to churn in protest. I wanted my bed. And complete darkness. And chocolate"

"I opened my eyes. The veil shimmered in front of us, and I could see the room we'd just left, now empty and cloaked in darkness."

"My small Southern hometown is beautiful in the haunting way an aging debutante is beautiful. The bones are exquisite, but the skin could use a lift."