The third Advent Sunday is Joy. Our focus on joy is simply the anticipation of what is to come. Choosing to live with joy based on the knowledge that Christ will come again.
And it came to pass, that, when Elisabeth heard the salutation of Mary, the babe leaped in her womb; and Elisabeth was filled with the Holy Ghost:
Luke 1:41 KJV
As Elisabeth was pregnant with John the Baptist, Jesus' cousin, the mere hearing of MAry's voice excited the babe and Elisabeth became full of the Holy Ghost. That is the kind of joy I seek. Knowing the Lord is coming and being so close.