What is the purpose of the grandfather's deathbed scene in "Battle Royal" by Ralph Ellison? What those the narrator's speech is , and the narrator's...

The story
opens with the narrator remembering his grandfathers death.  At the end of the story, he wonders
if the dream is prophetic.

The narrator reflects on how his grandparents were
lied to when they were told they had been freed.  They are not really free because of the way
they are treated by the whites.

"Son, after I'm gone
I want you to keep up the good fight. .....