Posttraumatic growth is the positive psychological change that may occur as the result of coping with disruption of one’s core beliefs, following the experience of a traumatic event. Some trauma survivors report a change in how they relate to others, appreciate life, perceive their personal strength, experience new possibilities for living, and experience spirituality. The current research study examines the role of spiritual beliefs in the overall process of posttraumatic growth. The results indicate that spiritual beliefs are positively related to the experience of core belief disruption: the more overall religious centrality that individuals reported, the more core belief disruption was endorsed. Results of regression analyses revealed that less endorsement of the religious centrality dimension of public practice predicted increased reports of core beliefs disruption. Additionally, regression analyses revealed that more reports of private practice of religion predicted increased endorsement of core belief disruption. Religious centrality, as a whole, was a positive predictor of posttraumatic growth, but none of the dimensions of religious centrality emerged as individual predictors of posttraumatic growth. This finding indicates that the religious centrality dimensions of public and private practice are related to the process of core belief disruption that leads to posttraumatic growth.