Sweeping the floor in preparation signifies utmost essence.
This usually means that one holds a person in such high regard that they clean their house before the person arrives, waiting for them.
With his casual remark, he highlighted Nathalie Quinlan's status in Mr. Yancey's mind and the Yancey Family's attitude towards her!
"..." Leonardy Zachmann's pupils shook as he raised his head, his face confused. His mouth moved, but he didn't know how to respond.
He never considered that Mr. Yancey and Candice Yancey's visit today had anything to do with Nathalie.
He thought that if Mr. Yancey and Candice had come, it was surely to give face to Amadeus Yancey; if Amadeus had asked them, they could not refuse.
Now, hearing Mr. Yancey's tone, it appeared that Mr. Yancey and Candice knew Nathalie privately and held her in high regard; otherwise, Amadeus would definitely not have used the phrase "sweeping the floor in preparation."