"The gospel is so clear that there is little need of learned interpretation. It is only necessary to ponder it well, to contemplate it, and to take it completely into your heart. None will benefit more from it than those whose hearts hold still and who divest themselves of material considerations and concentrate diligently on it. This lesson is just like the sun: in a placid pond it can be seen clearly and warms the water powerfully, but in a rushing current it cannot be seen as well nor can it warm up the water as much. So if you wish to be illumined and warmed here, to see God's mercy and wondrous deeds, so that your heart is filled with fire and light and becomes reverent and joyous, then go where you may be still and impress the picture deep into your heart. You will find no end of wonderful deeds."

Martin Luther, Christmas Eve Sermon