Contrast

Have you noticed how many contrasts we have discussed over these past few days?  Comfort and affliction; seen and unseen; present and absent; nature and super-nature are among those that scripture itself has brought to our attention.  Is there something fundamental about the idea of pairings?  In itself that's simply a sophomoric question.  We need to be careful about reducing all of existence to the comparison of two extremes.  Today's scripture calls a very stark comparison to mind, however.

"If we say we that we have fellowship with him, and walk in darkness..." (I John:6)

and

"But if we walk in the light, as he is in the light..." (I John:7)

I'm not wise enough to say whether or not life can be described in simple terms of light and darkness.  From the perspective of the engineer, light is spectral electromagnetic radiation, perceived through molecular phenomena like absorption and reflection of energy.  (And of course it famously bifurcates into the wave-particle dilemma, another contrast).
Can we tell when we are walking in darkness?  Maybe not always - it may depend on how long we have been in such a condition.  (What about Plato's cave?)  Somehow, though, we know when we are walking in the light.  We are drawn to the light.  The light itself draws us to it.  Seek that light.