In "The Glass Castle," Brian expresses concern about their sister Maureen being influenced by the Pentecostal community, which he refers to as "nutty." He believes that it’s important to protect her from these religious beliefs. However, their mother takes a more accepting stance, emphasizing the importance of individual journeys in faith. She believes that everyone has the right to explore their own path to spirituality and should respect the different religious practices of others.

This exchange highlights a central tension between protecting family members and allowing them the freedom to pursue their own spiritual beliefs. While Brian wants to shield Maureen from what he perceives as an extreme faith, their mother's perspective promotes a broader understanding of religion as a deeply personal experience that varies from person to person.