The document discusses how small churches can thrive in today's changing world by drawing inspiration from ancient Celtic abbeys. It outlines 10 practices used by Celtic abbeys that effectively evangelized communities: caring for people's needs, participating in the local economy, establishing daily spiritual practices, facilitating cultural transformation, welcoming all people, gathering for worship, pursuing peace, celebrating creativity, teaching through mentoring, and showing hospitality to strangers. Adopting these practices could help small, modern churches connect with their communities and revitalize their congregations.