No man ought to look for anything in heaven if he has not by faith first had some experience of it in this life. If men were convinced of this, they would spend more time in the exercise of faith and love about heavenly things than they usually do. At present they do not know what they enjoy, so they do not know what to expect. This is why men who are complete strangers to seeing the person and glory of Christ by faith have turned to images, pictures and music to help them in their worship.