How does Sherwood Anderson use imagery in Sophistication?

Imagery:

"A door is torn open and for the first time he looks out upon the world, seeing, as though they marched in procession before him, the countless figures of men who before his time have come out of nothingness into the world, lived their lives and again disappeared into nothingness."

"One shudders at the thought of the meaninglessness of life while at the same instant, and if the people of the town are his people, one loves life so intensely that tears come into the eyes."