We are creatures of light, let your inner light shine in the darkness. Darkness cannot overcome the light. Even to get this image I had to darken it, but the main subject, the cardinal, still stands out and appears to have an aura around it. If that isn't a sign of light I don't know what is.

"No one lights a lamp and puts it in a place where it will be hidden, or under a bowl. Instead he puts it on its stand, so that those who come in may see the light.  Your eye is the lamp of your body. When your eyes are good, your whole body also is full of light. But when they are bad, your body also is full of darkness.  See to it, then, that the light within you is not darkness. Luke 11:33-35