Are you walking in the darkness or the light?

The apostle John has some thought provoking words for us in chapter two of his first letter: Anyone who claims to be in the light but hates his brother is still in the darkness.  Whoever loves his brother lives in the light and there is nothing in him to make him stumble.  But whoever hates his brother is in the darkness and walks around in the darkness; he does not know where he is going, because the darkness has blinded him.