Discernment

It happened. It just did. One day everything just became clear.

 2. The power or faculty of the mind by which it distinguishes
        one thing from another; power of viewing differences in
        objects, and their relations and tendencies; penetrative
        and discriminate mental vision; acuteness; sagacity;
        insight; as, the errors of youth often proceed from the
        want of discernment.
  
     Syn: Judgment; acuteness; discrimination; penetration;
          sagacity; insight. -- Discernment, Penetration,
          Discrimination. Discernment is keenness and accuracy
          of mental vision; penetration is the power of seeing
          deeply into a subject in spite of everything that
          intercepts the view; discrimination is a capacity of
          tracing out minute distinctions and the nicest shades of
          thought. A discerning man is not easily misled; one of a
          penetrating mind sees a multitude of things which escape
          others; a discriminating judgment detects the slightest
          differences.