How does Shelby Steele use imagery in The Content of Our Character: A New Vision of Race in America?

Imagery:

"Once race-holding is triggered by fear, it ensnares us in a web of self-defeating attitudes that end up circumventing the new freedoms we've won over the past several decades."

"But what we must know even more than this is that nothing on this earth can be promised but a chance. The Promised Land guarantees nothing. It is only an opportunity, not a deliverance."