Using a grounded theory approach, this study examines the reasons why Millennials from conservative Christian backgrounds stop attending church. The purpose is to understand why attendance attrition is at an all time high for those in the Millennial generation, ages 18 to 29. Data from 18 semi-structured interviews with former attendees demonstrate that this phenomenon is not due to a simplistic list of reasons but is actually a result of a complex development involving varying interrelated processes. The primary processes at work are cognitive and spiritual disconnection and disengagement for personal wellbeing