A.W. Tozer emphasizes the power of hymns in softening stubborn hearts and awakening emotions that prayer alone may not reach. He likens the human heart to an orchestra, suggesting that the right influences, like those from great hymn writers such as Watts and Wesley, are essential for guiding our spiritual melodies. Tozer advocates for the integration of hymn singing with Bible reading, highlighting how both can enrich a Christian's faith and understanding. He warns against being led by inappropriate influences and encourages a devotion to the hymnbook as a means of spiritual protection and growth.