Today's liturgy is full of joy, the joy of a new life. For Christ is alive, and we should never allow anything to fill our hearts with so much grief, that we forget that Christ has conquered death. Whether the day is calm or stormy, whether I am in good health or bad, whatever comes my way, nothing can alter the fact that Christ has left the tomb.  If I can really grasp the significance of the resurrection of Christ, then I shall always be happy. "All I want," said St Paul, "is to know Christ, and the power of his resurrection" (Phil 3:10). Christianity, then, is compounded of far-reaching hope, and of a deep joy, that is not simply a concession to weak human nature, but a privilege and a duty. For a sad Christian is really not an authentic Christian, but a sorry one indeed.