I've heard a lot of people say that they felt closest to Jesus in the darkest periods of their lives. I think I took it for granted that I'd be able to say the same - but I can't. Dark nights, crying alone, rain slashing against the windows, I don't often have a sense of His comfort or His presence. I just feel alone. Gray mornings, eyes swollen half-shut, I don't often see His new mercies. I just feel alone.
The church exists to do Christ's work on earth until He returns, not to make me or anyone else comfortable; I exist to serve as a unique and necessary part of the body of Christ, not to sit on my hands while I point out all its flaws. The body of Christ only works properly when every part is doing its job, and truthfully, we introverts sometimes use that identity as an excuse to avoid or ignore our call.
As any introvert knows, it's not always easy to be a quiet person in a loud world. We are the anomaly; silent where noise is the norm, wordless where endless words are the expectation. We have something to say, but often aren't ready to say it until this instant-gratification generation has long since moved on to something new. And it's really no easier in our modern-day churches, which from an introvert's perspective often look like big, less-than-appealing social clubs that were not designed with the quiet person in mind.