Joy, one of the deepest three words in the English language.  http://thesaurus.com/browse/joy?s=t .  Think on it, three simple letters that evoke mirth, merriment, satisfaction, solace and rapture.  To the world joy is multifaceted, to the believer deeper still.  For to us joy is strength, power, example and authority.  If joy is not present then the Spirit is distant.  Joy, just as supernatural peace and discernment is evidence of the presence of the Almighty God in a believer’s life.  Look for joy and you will see the Holy Spirit.  Find it and you will live with Christ in this world.