Piper, Pop Culture, and Joy in God

What does this quote fromJohn Piper have to do with Pop Culture:

When the gospel of Jesus Christ frees us to see and savor the glory of God above all things, the way is opened for us to experience seamless joy in God and his gifts. We are able to see every gift as a beam from the sun of God’s glory. Every joy in the beam runs up to the fountain of light and ends there. No created thing becomes a rival but only a revelation of God. Therefore we can say that, for the gospel-liberated mind, all joy in created things is seamless with joy in God.