Think about it. Check out the photograph on the left. Without the shadows, this scene would have little definition.
Moving on....
Today, I received a very nice email about my dad's passing last week from Buzz Cherry in Seattle, WA. Buzz thanked me for giving a presentation in Seattle shortly after I learned of my dad's quick passing. (My dad always said the show must go on, so I gave the presentation for him.)
Anyway, Buzz wrote:
Perhaps your quote applies beyond photography:
Light - reveals
Shadows - define
Think about it.....
Explore the light - and the shadows. And.... shine in the shadows.
Rick