In the Old Testament, God dealt with His people as a nation...Their relationship was completely external. But in the New Covenant, the presence of God moved out of the temple and into our hearts.
Transformed worship is a life lived in Christ and for Christ...If you are to lead engaging worship, you must first recognize your own need for Christ and His Spirit to live in you.
The end of all worship leading is worship living. We must live our worship if we expect others to live their own worship.