A heavenly mind is a joyful mind; this is the nearest and truest way to live a life of comfort, and without this you must need be uncomfortable. Can a man be at a fire and not be warm; or in the sunshine and not have light? Can your heart be in heaven, and not have comfort? [On the other hand,] what could make such frozen, uncomfortable Christians but living so far as they do from heaven?... O Christian, get above. Believe it, that region is warmer than this below.