Joy as the Fruit of the Holy Spirit

Fr. Apostoli focuses on the joy as the fruit that the Holy Spirit brings to us. He talks about the last supper and there are references to the Holy Spirit mentioned there. He talks about how the Holy Spirit helps and defends us and against what it is defending us against. Why do we refer to the Holy Spirit as the comforter? Fr. Apostoli talks about this. How does the Holy Spirit brings froth the gift of joy in our life? Fr. Apostoli uses St. Paul as an example and looks at what he has to say in scriptures. Joy springs forth from love and it shows that God is present within our soul. Peace goes along with joy. One affects the other.