If a painting has a soulful effect on the viewer, if it puts his mind into a soulful mood, then it has fulfilled the first requirement of a work of a… - Caspar David Friedrich

It is doubtful whether the artist [unknown] altogether knew what he depicted here in this panel, and even more doubtful whether he could have expressed it in words. That which we praise here as well thought-out and cleverly arranged may, in fact, have been achieved by him unconsciously; for the artist was transformed by pure harmoniousness while executing this picture, and his feeling become his law. Only his disposition, his spiritual exaltation, could have brought forth such a fruit as this picture. Just as the pious man prays without speaking a word and the Almighty hearkens unto him, so the artist with true feeling paints and the sensitive man understands and recognizes it; while even the less sensitive gain some inkling of it.

Just as the reverent man prays without uttering words, and the Lord hears him, the sensitive painter paints, and the sensitive man understands and recognizes him, but even the more obtuse carry away something from his work.

Close your bodily eye, so that you may see your picture first with the spiritual eye. Then bring to the light of day that which you have seen in the darkness so that it may react upon others from the outside inwards. A picture must not be invented but felt. Observe the form exactly, both the smallest and the large and do not separate the small from the large, but rather the trivial from the important.