What we need today is a critical mass of Spirit-empowered disciples from this generation—growing, multiplying, and changing the world for Jesus and the kingdom of God! This book presents a vision for discipleship, a philosophy of ministry, and a discussion of disciplemaking concepts and leadership priorities. Critical mass is the existence of sufficient momentum that becomes self-sustaining and fuels further growth. In a spiritual context, it involves the personal spiritual growth of individuals in all areas of maturity and corporate spiritual multiplication of the body of Christ through disciplemaking. These components—growing disciples, fruitful disciplemakers, and spiritual multiplication are the essential building blocks of the kingdom of God and the subject of this book.