Prayer is a sanctifying duty. After having been with God on the mountain, Moses' countenance had become radiant. When the Lord Jesus prayed, a holy radiance came upon Him (Mat. 17:2). This still occurs if we have been much in prayer. Even if it appears that the matter for which we have specifically prayed has not been received, we shall nevertheless come away from prayer with a holy and radiant soul. Reflect upon this and your soul will take flight, and you will be desirous to pray (III: 469).