the WORD was with God....was God...was with God in the beginning.
that WORD -God- created everything.
Life in it's truest form was in Him.
This life, life that existed purely in Him
This light, which is Life, which is Him,
shines thru darkness.
Darkness can't get rid of it.
Which means darkness can't exist when Light is present.
This Light, this Life, is Christ.
Where Christ is, darkness isn't.