Romans 8 is a manifesto on the call of all who are saved to live the Spiritual Life. Not that it is a choice, in the strictest sense, because all who are "in Christ Jesus" will walk "after the Spirit." What is a "Spiritual Life" then? A spiritual life is one in which the believer, indwelt by God's Spirit, is daily acting in faith, being moved by hope, and growing in identity with, awareness of, and obedience to Jesus Christ. Spiritual life is a life in which we are being led by, filled with, and taught by the Holy Spirit of God to be "in Christ!"