Book excerpt: This book gets at the heart of the Christian life by considering some of the great truths of God's existence. Christopher Holmes, an expert in contemporary theology, engages with the church fathers along with Augustine and Aquinas to offer a rich, accessible account of the triune God and the divine perfections. Holmes shows how we share in the life of God through imitation and participation and how the doctrines of the triune God and the divine attributes shape our understanding of the Christian life. Throughout, Holmes demonstrates the importance of theology for Christian faith and practice.