This small book that you are reading is written as a little introduction for Christians who wish to live faithfully in their cultural contexts. It shows how all of life matters to God, and how every Christian can serve powerfully as a representative of Christ, even if he or she is not an international missionary or a pastor. It is meant to show that God cares not only about the goings-on within the four walls of a church building but also about the goings-on in every corner of society and culture. He wants us to take seriously our interactions in the arts (music, literature, cinema, architecture, interior décor, culinary arts), the natural sciences (biology, physics, chemistry), the social sciences (psychology, sociology), the public square (journalism, politics, economics, law), the academy (schools, universities, seminaries), sports and competition, and homemaking. Every dimension of our lives relates in some way to Christ and can in some manner be directed toward him.