How does Lorene Cary use imagery in Black Ice?

Imagery:

“I had not expected the gentle, tentative surge of gratitude I began to feel...for St. Paul's School, the spring, and the early morning. I needed the morning light and the warbling birds. I needed to find a way to live in this place for a moment and get the good of it. I had tried to hold myself apart, and the aloneness proved more terrible than what I had tried to escape.”

“Veins raised themselves along the backs of my hands that summer. My handwriting changed several times."