Answer:
The word emphasizes that these things are all normal.
Step-by-step explanation:
Chivalry is a short story written by Neil Gaiman. The story surrounds Mrs. Whitaker, who buys the Holy Grail from a secondhand shop.
In the story, the author has used word 'nice' to describe various people and objects such as Sir Galaad, the Holy Grail, a piece of liver, the Sword Balmung, the Philosopher's Stone, etc. Using the word repeatedly emphasizes that these objects were all normal to people in the story.
The word makes perceive these objects and people normal instead of it's extraordinarility. The Holy Grail is the cup in which Jesus Christ took the Lord's Supper with His disciple, but calling it 'nice' instead of perceiving it extraordinary, the term dictates that these things were perceived to be normal.