Is the light light?...

Light and dark seem pretty clear cut opposites...or are they?  When does dark become light?  Or when does light become dark?

Positive and negative, when represented on a number line, are decisively divided at zero. Everything to the right is always positive all the time and everything to the left is always negative all the time.  Light and dark, however, if represented in a linear fashion have a very different representation.  The only point at which light is 100% light is at the very outer limit in one direction of that line.  Likewise, dark is 100% dark at the  outer limit of the other direction of that line.  The spectrum in between, in theory, represents degrees of light and degrees of dark.

This twilight portion of the spectrum is the place where we are easily deceived.  In Matthew 6:23, Jesus is recorded as saying, "If the light you think you have is actually darkness, how deep that darkness is."

Beware of the deception of the darkness that poses as light.  That is a scary and dangerous place to be.

God is light and there is no darkness at all in Him. (1 John 1:5).  That is the frequency on the spiritual light spectrum that our eyes need to be trained to.  He has made His light shine into our hearts so that we can know the glory of God. (2 Cor. 5:6)  As we know that glory, we will not be deceived by anything less.