Why did the grocers decide to stop giving Baba oil, and how did they react after he performed the lamp miracle?

The grocers' motivation, as detailed in Chapter 5, stemmed from annoyance. Since Baba came daily to get oil for free, they developed a "wicked idea" and conspired together, deciding that "This nuisance must stop now." However, their attitude shifted dramatically after they refused him and witnessed his subsequent miracle. Upon seeing the lamps burn all night with water, they were amazed and filled with repentance. They acknowledged to themselves that they had lied, sinned, and given Baba needless trouble, and they began to tremble, feeling unworthy of Sai's grace.