You will love this conversation with Dr. Jonathan Powers, a Levite all the way through. He has a great take on what it means to worship in Spirit and in truth. Dr. Powers serves as Associate Professor of Worship Studies at Asbury Theological Seminary. He has (I’m quoting from the seminary website here) "a passion for the intersection of liturgy and spiritual formation in the life of the church." Look up his books on Seedbed: Echo: A Catechism for Discipleship in the Ancient Christian Tradition, The 12 Days of Christmas Sermons, and Watchnight: John Wesley’s Covenant Renewal Service. He had done good work with grief and lament, and he has participated in the formation of a hymnal (Our Great Redeemer’s Praise). His most recent book is New Life in the Risen Christ: A Wesleyan Theology of Baptism.