Because we believe that somewhere in the nest of paradigms contained in the phrase "missional church" lies nothing less that the future viability of Western Christianity.
Our point isn't to make an examination of popular film but to illustrate that the yearning for a heroic adventure lies just beneath the surface of our consciousness; film, television, literature, sports, and travel are in a sense vicarious adventures.
The church of Jesus needs to wake up from the exile of passivity and embrace liminality and adventure or continue to remain a religious ghetto for culturally co-opted, fearful, middle-class folk.
If we can embrace the adventure and risk and equip our churches to lay down their lives and abandon their inherent loss-aversion, who knows what innovation, what freshness, what new insights from the Spirit will emerge.
When the church is in mission, it is the true church. The church itself is not only a product of that mission but is obligated and destined to extend it by whatever means possible. The mission of God flows directly through every believer and every community of faith that adheres to Jesus. To obstruct this is to block God's purposes in and through his people.
In short, apostolic movement involves a radical community of disciples, centered on the lordship of Jesus, empowered by the Spirit, built squarely on a fivefold ministry, organized around mission where everyone (not just professionals) is considered an empowered agent, and tends to be decentralized in organizational structure.
The appetite for adventure and risk is not exclusive to young Christians. In face, it seems to be a fundamental yearning, knitted into the fabric of the human soul.
Whether we like it or not, we are all on a journey, a Quest if you will, every day of our lives, and the path we must take is full of perils, and our destiny can never be predicted in advance.