What do we know about the character from the following passage? "if I keep my feet. Felipe Sandoz said with soft venom, 'who are you to crawl for me?"

The given statement reveals about the character Sandoz that he has became numb to any sympathy because of what he suffered on the planet Rakhat.

Explanation:

"The Sparrow" is a novel written by Mary Doria Russell. The novel is a work of science-fiction mixed with religious beliefs.

Emilio Sandoz is the protagoist of the novel. He is the only survivor from the mission Rakhat, a plant on which Sandoz along with two other people went on a mission on the planet Rakhat. He shared terrible experience on the planet, his other two companions were killed on the planet. And he himself killed a child on the planet and was found prostituting himself on the planet. And even his hands were cut.

In the given incidence Father Felipe Reyes is called to help Sandoz overcome his trauma but were engaged in an argument. This shows that Sandoz's terrible experience on Rakhat has made him numb to sympathy which eventually leads him to forsake his faith.

"the sandy walls seemed to collapse in on themselves"

and

"the bloodshot waters seemed to have no bottom"