Inspired by John Bunyan's allegory of the same name, the composer paints a sound picture of spiritual warfare between the forces of good and evil. Martin Luther's Reformation chorale Ein feste Burg (A Mighty Fortress is our God) serves as the rallying point for 'good' forces led by Mansoul. This brilliant score, A Salvation Army epic, serves as an example of marvellous invention, colourful scoring and compact formal symmetry.