Being filled with the Spirit clearly has to do with focusing on the Lord in many ways: Singing, praying, reading and studying His Word! This way we use all the means that God has given us to be filled with the Spirit. Paul says somewhere: "For the Lord (Jesus) is the Spirit" (2 Corinthians 3:17). This does not mean that we can not distinguish between the Lord Jesus and the Holy Spirit, but it does mean that there is a very close bond between Jesus and the Holy Spirit: When we focus on Jesus Christ, the Lord who was crucified and has been resurrected, the Spirit is working in us, to fill us with himself.