How does Eliezer feel at the end when he looks in the mirror?

This is in the last two lines of the book, "from the depths of the mirror, a corpse gazed back at me. The look in his eyes, as they stared into mine, has never left me." Eliezer cannot believe the skeleton in front of him. It looks like somebody else, a dead person. I suppose beyond the physical change there is a huge emotional change as well. Eliezer's image begins to trigger his inner disintegration; it is disintegration of belief in mankind and of his Jewish faith that he once held so sacred.