Is there somebody who've read this book 'Dreams From my Father'?

Can you help me understand this excerpts from the book page 17?

Toot would eventually dissuade him of his views on the church("For Christ's sake, Stanley, religion's not supposed to be like buying breakfast cereal!"), but if my grandmother was more skeptical by nature, and disagreed with Gramps on some of his more outlandish notions, her own stubborn independence, her own insistence on thinking something through for herself, generally brought them into rough alignment.