"The evangelical culture ties together faithfulness with extroversion," McHugh explained. "The emphasis is on community, on participating in more and more programs and events, on meeting more and more people. It's a constant tension for many introverts that they're not living that out. And in a religious world, there's more at stake when you feel that tension. It doesn't feel like 'I'm not doing as well as I'd like.' It feels like 'God isn't pleased with me."