How does entertainment glorify God at all?

In the modern context, we have many things to keep ourselves entertained and motivated to do work - music, videos, movies, games, magazines etc. According to 1 Corinthians 10:31 KJV >Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of God. It is clear that in whatever we do we will do it for the glory of God. However I really wonder how does gaming, watching video and having self-entertainment would do to glorify God.