*...what the modern human being cannot accept is forgiveness and grace.  We would rather take our punishment, as it were.  And the Christian God says, "No. I forgive you whether you like it or not."  That's the only fire of hell-this loving forgiveness of God.  That's why Jesus says there is only one unforgivable sin-the blasphemy of the Holy Spirit.  And what is that?  It is the unwillingness to be forgiven and to forgive.  The proud cannot accept grace.
-Fr. Thomas Hopko