How does Dalton Trumbo use imagery in Johnny Got His Gun?

Imagery:

"The hole began at the base of his throat just below where his jaw should be and went upward in a widening circle. He could feel his skin creeping around the rim of the circle. The hole was getting bigger and bigger. It widened out almost to the base of his ears if he had any and then narrowed again. It ended somewhere above the top of what used to be his nose.
"The hole went too high to have any eyes in it.
"He was blind.

"They died crying in their minds like little babies. They forgot the thing they were fighting for the things they were dying for. They thought about things a man can understand. They died yearning for the face of a friend. They died whimpering for the voice of a mother a father a wife a child. They died with their hearts sick for one more look at the place where they were born please god just one more look. They died moaning and sighing for life. They knew what was important They knew that life was everything and they died with screams and sobs. They died with only one thought in their minds and that was I want to live I want to live I want to live.