The mind receives and processes information, while the heart stores and deploys affections. In the soul, these overlap and interact, but they require the conscience to help them process ideas and feelings into actions.
The Christian life is not all happiness and rejoicing. It is that, to be sure, but many reasons exist why Christians will sorrow and grieve, and we need to know how to do so to the glory of God.
Of all the forms of culture that have the power to confront us with the mind of Christ, great Christian art is surely the most effective. Yet how many of us have any familiarity with this precious treasure and resource?