In Volume II of Issues in Missiology, Dr. Patton addresses the subjects of Spiritual Warfare and The Spiritual Life of the Missionary. Spiritual warfare is a reality not only in the developing world, but also in ministries in "developed" countries. The missionary must be prepared to deal with these spiritual realities. All missionaries, to be effective, must walk in the Spirit. God works through the missionary to accomplish His goals as he yields to Him and works in His power and wisdom, and not in his own strength.