"It was a prayer," she said.
"It wasn’t no preacher’s prayer."
"It was a good prayer.
– John Steinbeck
The Grapes of Wrath, Chapter 18. Sairy Wilson, who knows that she is dying, asks Jim Casy to say a prayer like the one he said for Grampa Joad. When Casy protests that it was no preacher’s prayer, Sairy describes it as a good prayer. This speaks to the idea that organized religion has no monopoly or rights on prayer, and an individual may pray in whatever way they see fit.