As a former Army chaplain, E.M. Bounds was no stranger to warfare when he wrote this book. He saw prayer as a powerful weapon that he used throughout his time at war and on the road as a traveling preacher. In this text, Bounds dives into the "why" of prayer—why you should intercede for your neighbor, why prayer should be prioritized in ministry, why Jesus himself prayed, and much more. His compelling words continue to inspire Christians today to spend more time in communion with God.