formation of the spirit or inner being of the individual, though that is both the process and the outcome. It is also formation by the Spirit of God and by the spiritual riches of Christ’s continuing incarnation in his people—including, most prominently, the treasures of his written and spoken word and the amazing personalities of those in whom he has most fully lived. Spiritual formation is, in practice, the way of rest for the weary and overloaded, of the easy yoke and the light burden (Matthew