-About Adumbration-
Most people think that shadows follow, precede, or surround beings or objects. The truth is that they also surround words, ideas, desires, deeds, impulses and memories. -Elie Wiesel, writer, Nobel laureate (b. 1928)
On the other hand, "Who knows what evil lurks in the hearts of men? The Shadow knows!"
Sometimes the shadow, sometimes the object, sometimes the light that illuminates.
It is an imperfect metaphor.