Worship is also the summit of faith... The staircase that descends to us from God's dwelling place also ascends from this world to the One who comes down to us through the gate of heaven and who leads us back through it to our true and abiding home. Worshio, therefore, is divine service in a double sense. It is God's service of us, and it is our service of God in response to the divine initiative... It begins with God's service to us and it continues with our response.
-Philip H. Pfatteicher, Liturgical Spirituality