Introduction to the Devout Life by Francis of Sales, St. (1567-1622)

Do I need to go into full-time ministry to live a truly Christian life? Am I really a Christian if I'm not out preaching the gospel in dangerous places where people have never heard of Christ? Can secular work benefit the kingdom of God? All Christians struggle to discern God's call on their life, but God does call all to live a Christ-centered life.