But I can tell my own story, which studies suggest is an increasingly common one. I can talk about growing up evangelical, about doubting everything I believed about God, about loving, leaving, and longing for church, about searching for it and finding it in unexpected places. And I can share the stories of my friends and readers, people young and old whose comments, letters, and e-mails read like postcards from their own spiritual journeys, dispatches from America's post-Christian frontier. I can't provide the solutions church leaders are looking for, but I can articulate the questions that many in my generation are asking. I can translate some of their angst, some of their hope....

I told them we're tired of the culture wars, tired of Christianity getting entangled with party politics and power. Millennials want to be known by what we're for, I said, not just what we're against. We don't want to choose between science and religion or between our intellectual integrity and our faith. Instead, we long for our churches to be safe places to doubt, to ask questions, and to tell the truth, even when it's uncomfortable. We want to talk about the tough stuff -- biblical interpretation, religious pluralism, sexuality, racial reconciliation, and social justice -- but without predetermined conclusions or simplistic answers. We want to bring our whole selves through the church doors, without leaving our hearts and minds behind, without wearing a mask.

I explained that when our gay, lesbian, bisexual, and transgender friends aren't welcome at the table, then we don't feel welcome either, and that not every young adult gets married or has children, so we need to stop building our churches around categories and start building them around people. And I told them that, contrary to popular belief, we can't be won back with hipper worship bands, fancy coffee shops, or pastors who wear skinny jeans. We millennials have been advertised to our entire lives, so we can smell b.s. from a mile away. The church is the last place we want to be sold another product, the last place we want to be entertained.

Millennials aren't looking for a hipper Christianity, I said. We're looking for a truer Christianity, a more authentic Christianity. Like every generation before ours and every generation after, we're looking for Jesus -- the same Jesus who can be found in the strange places he's always been found: in bread, in wine, in baptism, in the Word, in suffering, in community, and among the least of these.

And even still, the kingdom remains a mystery just beyond our grasp. It is here, and not yet, present and still to come. Consummation, whatever that means, awaits us. Until then, all we have are metaphors. All we have are almosts and not quites and wayside shrines. All we have are imperfect people in an imperfect world doing their best to produce outward signs of inward grace and stumbling all along the way.

All we have is this church -- this lousy, screwed-up, glorious church -- which, by God's grace, is enough.