Donald S. Whitney, Spiritual Disciplines for the Christian Life, 1991, p. 94-95.
Worship is a Spiritual Discipline insofar as it is both an end and a means. The worship of God is an end in itself because worship, as we’ve defined it, is to focus on and respond to God. There is no higher goal than focusing on and responding to God. But worship is also a means in the sense that it is a means to Godliness. The more truly we worship God, the more we become like Him.
Donald S. Whitney, Spiritual Disciplines for the Christian Life, 1991, p. 94-95.