Dale Heil, the author of this book, spent several years in the Colorado prison system. A few months into his incarceration he received the Lord Jesus Christ, and dedicated his life to the service of the Lord. He has a love for God's Word, and dedicated most of his time to the study of it. After a period of time, the prison bible studies were not enough to satisfy his hunger for God's Word, and his strong desire to know more. He then began to pray for deeper insight in the Word, and God revealed it to him. He eventually began to teach bible studies to other inmates, and did so until his release. He and another inmate started a ministry, from the inside, called Spirit and Life, which seemed to be a fitting title to this book. These bible studies has continued to have a profound effect on God's people inside and outside of prison walls.